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Finding the Fourth Proportional to 268,882.64, 371,016.88 and 155,683.52

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Solution

The fourth proportional to 268,882.64, 371,016.88 and 155,683.52 is: 214,819.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    268,882.64 : 371,016.88 = 155,683.52 : x
  2. Step 2: Convert to fraction form
    268,882.64/371,016.88 = 155,683.52/x
  3. Step 3: Cross multiply
    268,882.64x = 371,016.88 × 155,683.52
  4. Step 4: Simplify right side
    268,882.64x = 57,761,213,857.82
  5. Step 5: Solve for x
    x = 57,761,213,857.82/268,882.64
  6. Step 6: Final answer
    x = 214,819.42

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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.