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Finding the Fourth Proportional to 522,300.60, 783,450.90 and 256,231.80

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Solution

The fourth proportional to 522,300.60, 783,450.90 and 256,231.80 is: 384,347.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    522,300.60 : 783,450.90 = 256,231.80 : x
  2. Step 2: Convert to fraction form
    522,300.60/783,450.90 = 256,231.80/x
  3. Step 3: Cross multiply
    522,300.60x = 783,450.90 × 256,231.80
  4. Step 4: Simplify right side
    522,300.60x = 200,745,034,318.62
  5. Step 5: Solve for x
    x = 200,745,034,318.62/522,300.60
  6. Step 6: Final answer
    x = 384,347.70

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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.