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Finding the Fourth Proportional to 279,694.29, 385,982.33 and 152,369.85

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Solution

The fourth proportional to 279,694.29, 385,982.33 and 152,369.85 is: 210,272.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    279,694.29 : 385,982.33 = 152,369.85 : x
  2. Step 2: Convert to fraction form
    279,694.29/385,982.33 = 152,369.85/x
  3. Step 3: Cross multiply
    279,694.29x = 385,982.33 × 152,369.85
  4. Step 4: Simplify right side
    279,694.29x = 58,812,068,962.90
  5. Step 5: Solve for x
    x = 58,812,068,962.90/279,694.29
  6. Step 6: Final answer
    x = 210,272.68

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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.