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Finding the Fourth Proportional to 256,882.02, 385,223.19 and 88,370.34

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Solution

The fourth proportional to 256,882.02, 385,223.19 and 88,370.34 is: 132,521.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    256,882.02 : 385,223.19 = 88,370.34 : x
  2. Step 2: Convert to fraction form
    256,882.02/385,223.19 = 88,370.34/x
  3. Step 3: Cross multiply
    256,882.02x = 385,223.19 × 88,370.34
  4. Step 4: Simplify right side
    256,882.02x = 34,042,304,276.18
  5. Step 5: Solve for x
    x = 34,042,304,276.18/256,882.02
  6. Step 6: Final answer
    x = 132,521.16

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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.