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Finding the Fourth Proportional to 423,179.52, 635,076 and 156,977.88

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Solution

The fourth proportional to 423,179.52, 635,076 and 156,977.88 is: 235,580.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    423,179.52 : 635,076 = 156,977.88 : x
  2. Step 2: Convert to fraction form
    423,179.52/635,076 = 156,977.88/x
  3. Step 3: Cross multiply
    423,179.52x = 635,076 × 156,977.88
  4. Step 4: Simplify right side
    423,179.52x = 99,692,884,118.88
  5. Step 5: Solve for x
    x = 99,692,884,118.88/423,179.52
  6. Step 6: Final answer
    x = 235,580.60

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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.