Home / 345,252.30-517,949.04-145,572.90

Finding the Fourth Proportional to 345,252.30, 517,949.04 and 145,572.90

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Solution

The fourth proportional to 345,252.30, 517,949.04 and 145,572.90 is: 218,389.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    345,252.30 : 517,949.04 = 145,572.90 : x
  2. Step 2: Convert to fraction form
    345,252.30/517,949.04 = 145,572.90/x
  3. Step 3: Cross multiply
    345,252.30x = 517,949.04 × 145,572.90
  4. Step 4: Simplify right side
    345,252.30x = 75,399,343,805.02
  5. Step 5: Solve for x
    x = 75,399,343,805.02/345,252.30
  6. Step 6: Final answer
    x = 218,389.11

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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.