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Finding the Fourth Proportional to 178,318.80, 267,357 and 84,834

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Solution

The fourth proportional to 178,318.80, 267,357 and 84,834 is: 127,193.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    178,318.80 : 267,357 = 84,834 : x
  2. Step 2: Convert to fraction form
    178,318.80/267,357 = 84,834/x
  3. Step 3: Cross multiply
    178,318.80x = 267,357 × 84,834
  4. Step 4: Simplify right side
    178,318.80x = 22,680,963,738
  5. Step 5: Solve for x
    x = 22,680,963,738/178,318.80
  6. Step 6: Final answer
    x = 127,193.34

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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.