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Finding the Fourth Proportional to 457,989.48, 687,046.59 and 158,389.65

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Solution

The fourth proportional to 457,989.48, 687,046.59 and 158,389.65 is: 237,606.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    457,989.48 : 687,046.59 = 158,389.65 : x
  2. Step 2: Convert to fraction form
    457,989.48/687,046.59 = 158,389.65/x
  3. Step 3: Cross multiply
    457,989.48x = 687,046.59 × 158,389.65
  4. Step 4: Simplify right side
    457,989.48x = 108,821,068,923.79
  5. Step 5: Solve for x
    x = 108,821,068,923.79/457,989.48
  6. Step 6: Final answer
    x = 237,606.04

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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.