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Finding the Fourth Proportional to 522,076.60, 783,114.90 and 242,140.60

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Solution

The fourth proportional to 522,076.60, 783,114.90 and 242,140.60 is: 363,210.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    522,076.60 : 783,114.90 = 242,140.60 : x
  2. Step 2: Convert to fraction form
    522,076.60/783,114.90 = 242,140.60/x
  3. Step 3: Cross multiply
    522,076.60x = 783,114.90 × 242,140.60
  4. Step 4: Simplify right side
    522,076.60x = 189,623,911,754.94
  5. Step 5: Solve for x
    x = 189,623,911,754.94/522,076.60
  6. Step 6: Final answer
    x = 363,210.90

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Double scale
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Similar ratio
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.