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Finding the Fourth Proportional to 500,178.87, 750,330 and 163,129.41

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Solution

The fourth proportional to 500,178.87, 750,330 and 163,129.41 is: 244,714.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    500,178.87 : 750,330 = 163,129.41 : x
  2. Step 2: Convert to fraction form
    500,178.87/750,330 = 163,129.41/x
  3. Step 3: Cross multiply
    500,178.87x = 750,330 × 163,129.41
  4. Step 4: Simplify right side
    500,178.87x = 122,400,890,205.30
  5. Step 5: Solve for x
    x = 122,400,890,205.30/500,178.87
  6. Step 6: Final answer
    x = 244,714.24

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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.