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Finding the Fourth Proportional to 382,035.32, 527,177.90 and 220,900.80

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Solution

The fourth proportional to 382,035.32, 527,177.90 and 220,900.80 is: 304,825.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    382,035.32 : 527,177.90 = 220,900.80 : x
  2. Step 2: Convert to fraction form
    382,035.32/527,177.90 = 220,900.80/x
  3. Step 3: Cross multiply
    382,035.32x = 527,177.90 × 220,900.80
  4. Step 4: Simplify right side
    382,035.32x = 116,454,022,381.49
  5. Step 5: Solve for x
    x = 116,454,022,381.49/382,035.32
  6. Step 6: Final answer
    x = 304,825.28

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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.