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Finding the Fourth Proportional to 386,708.38, 580,093.70 and 146,937.19

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Solution

The fourth proportional to 386,708.38, 580,093.70 and 146,937.19 is: 220,417.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    386,708.38 : 580,093.70 = 146,937.19 : x
  2. Step 2: Convert to fraction form
    386,708.38/580,093.70 = 146,937.19/x
  3. Step 3: Cross multiply
    386,708.38x = 580,093.70 × 146,937.19
  4. Step 4: Simplify right side
    386,708.38x = 85,237,337,943.98
  5. Step 5: Solve for x
    x = 85,237,337,943.98/386,708.38
  6. Step 6: Final answer
    x = 220,417.61

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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.