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Finding the Fourth Proportional to 522,085.60, 783,128.40 and 242,149.60

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Solution

The fourth proportional to 522,085.60, 783,128.40 and 242,149.60 is: 363,224.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    522,085.60 : 783,128.40 = 242,149.60 : x
  2. Step 2: Convert to fraction form
    522,085.60/783,128.40 = 242,149.60/x
  3. Step 3: Cross multiply
    522,085.60x = 783,128.40 × 242,149.60
  4. Step 4: Simplify right side
    522,085.60x = 189,634,228,808.64
  5. Step 5: Solve for x
    x = 189,634,228,808.64/522,085.60
  6. Step 6: Final answer
    x = 363,224.40

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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.