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Finding the Fourth Proportional to 453,491.60, 680,761.20 and 243,539.60

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Solution

The fourth proportional to 453,491.60, 680,761.20 and 243,539.60 is: 365,590.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    453,491.60 : 680,761.20 = 243,539.60 : x
  2. Step 2: Convert to fraction form
    453,491.60/680,761.20 = 243,539.60/x
  3. Step 3: Cross multiply
    453,491.60x = 680,761.20 × 243,539.60
  4. Step 4: Simplify right side
    453,491.60x = 165,792,310,343.52
  5. Step 5: Solve for x
    x = 165,792,310,343.52/453,491.60
  6. Step 6: Final answer
    x = 365,590.70

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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.