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Finding the Fourth Proportional to 345,437.97, 518,175.51 and 108,799.17

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Solution

The fourth proportional to 345,437.97, 518,175.51 and 108,799.17 is: 163,204.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    345,437.97 : 518,175.51 = 108,799.17 : x
  2. Step 2: Convert to fraction form
    345,437.97/518,175.51 = 108,799.17/x
  3. Step 3: Cross multiply
    345,437.97x = 518,175.51 × 108,799.17
  4. Step 4: Simplify right side
    345,437.97x = 56,377,065,402.33
  5. Step 5: Solve for x
    x = 56,377,065,402.33/345,437.97
  6. Step 6: Final answer
    x = 163,204.60

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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.