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Finding the Fourth Proportional to 240,761.76, 332,140.92 and 155,906.16

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Solution

The fourth proportional to 240,761.76, 332,140.92 and 155,906.16 is: 215,079.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    240,761.76 : 332,140.92 = 155,906.16 : x
  2. Step 2: Convert to fraction form
    240,761.76/332,140.92 = 155,906.16/x
  3. Step 3: Cross multiply
    240,761.76x = 332,140.92 × 155,906.16
  4. Step 4: Simplify right side
    240,761.76x = 51,782,815,416.07
  5. Step 5: Solve for x
    x = 51,782,815,416.07/240,761.76
  6. Step 6: Final answer
    x = 215,079.07

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.