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Finding the Fourth Proportional to 221,915.88, 332,957.88 and 133,231.32

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Solution

The fourth proportional to 221,915.88, 332,957.88 and 133,231.32 is: 199,897.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    221,915.88 : 332,957.88 = 133,231.32 : x
  2. Step 2: Convert to fraction form
    221,915.88/332,957.88 = 133,231.32/x
  3. Step 3: Cross multiply
    221,915.88x = 332,957.88 × 133,231.32
  4. Step 4: Simplify right side
    221,915.88x = 44,360,417,856.80
  5. Step 5: Solve for x
    x = 44,360,417,856.80/221,915.88
  6. Step 6: Final answer
    x = 199,897.45

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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.