Home / 345,084.16-517,450.08-157,935.20

Finding the Fourth Proportional to 345,084.16, 517,450.08 and 157,935.20

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Solution

The fourth proportional to 345,084.16, 517,450.08 and 157,935.20 is: 236,822.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    345,084.16 : 517,450.08 = 157,935.20 : x
  2. Step 2: Convert to fraction form
    345,084.16/517,450.08 = 157,935.20/x
  3. Step 3: Cross multiply
    345,084.16x = 517,450.08 × 157,935.20
  4. Step 4: Simplify right side
    345,084.16x = 81,723,581,874.82
  5. Step 5: Solve for x
    x = 81,723,581,874.82/345,084.16
  6. Step 6: Final answer
    x = 236,822.18

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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.