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Finding the Fourth Proportional to 458,276.88, 687,251.30 and 158,677.02

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Solution

The fourth proportional to 458,276.88, 687,251.30 and 158,677.02 is: 237,958.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    458,276.88 : 687,251.30 = 158,677.02 : x
  2. Step 2: Convert to fraction form
    458,276.88/687,251.30 = 158,677.02/x
  3. Step 3: Cross multiply
    458,276.88x = 687,251.30 × 158,677.02
  4. Step 4: Simplify right side
    458,276.88x = 109,050,987,481.74
  5. Step 5: Solve for x
    x = 109,050,987,481.74/458,276.88
  6. Step 6: Final answer
    x = 237,958.74

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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.