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Finding the Fourth Proportional to 386,799.62, 580,186.53 and 159,087.38

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Solution

The fourth proportional to 386,799.62, 580,186.53 and 159,087.38 is: 238,625.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    386,799.62 : 580,186.53 = 159,087.38 : x
  2. Step 2: Convert to fraction form
    386,799.62/580,186.53 = 159,087.38/x
  3. Step 3: Cross multiply
    386,799.62x = 580,186.53 × 159,087.38
  4. Step 4: Simplify right side
    386,799.62x = 92,300,352,068.06
  5. Step 5: Solve for x
    x = 92,300,352,068.06/386,799.62
  6. Step 6: Final answer
    x = 238,625.76

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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.