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Finding the Fourth Proportional to 458,179.76, 687,104.94 and 158,579.12

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Solution

The fourth proportional to 458,179.76, 687,104.94 and 158,579.12 is: 237,811.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    458,179.76 : 687,104.94 = 158,579.12 : x
  2. Step 2: Convert to fraction form
    458,179.76/687,104.94 = 158,579.12/x
  3. Step 3: Cross multiply
    458,179.76x = 687,104.94 × 158,579.12
  4. Step 4: Simplify right side
    458,179.76x = 108,960,496,732.85
  5. Step 5: Solve for x
    x = 108,960,496,732.85/458,179.76
  6. Step 6: Final answer
    x = 237,811.68

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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.