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Finding the Fourth Proportional to 240,770.71, 332,153.35 and 155,915.11

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Solution

The fourth proportional to 240,770.71, 332,153.35 and 155,915.11 is: 215,091.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    240,770.71 : 332,153.35 = 155,915.11 : x
  2. Step 2: Convert to fraction form
    240,770.71/332,153.35 = 155,915.11/x
  3. Step 3: Cross multiply
    240,770.71x = 332,153.35 × 155,915.11
  4. Step 4: Simplify right side
    240,770.71x = 51,787,726,102.12
  5. Step 5: Solve for x
    x = 51,787,726,102.12/240,770.71
  6. Step 6: Final answer
    x = 215,091.47

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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.