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Finding the Fourth Proportional to 389,007.87, 583,610.21 and 108,524.91

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Solution

The fourth proportional to 389,007.87, 583,610.21 and 108,524.91 is: 162,814.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    389,007.87 : 583,610.21 = 108,524.91 : x
  2. Step 2: Convert to fraction form
    389,007.87/583,610.21 = 108,524.91/x
  3. Step 3: Cross multiply
    389,007.87x = 583,610.21 × 108,524.91
  4. Step 4: Simplify right side
    389,007.87x = 63,336,244,972.71
  5. Step 5: Solve for x
    x = 63,336,244,972.71/389,007.87
  6. Step 6: Final answer
    x = 162,814.82

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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.