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Finding the Fourth Proportional to 453,175.32, 679,365.54 and 172,505.88

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Solution

The fourth proportional to 453,175.32, 679,365.54 and 172,505.88 is: 258,607.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    453,175.32 : 679,365.54 = 172,505.88 : x
  2. Step 2: Convert to fraction form
    453,175.32/679,365.54 = 172,505.88/x
  3. Step 3: Cross multiply
    453,175.32x = 679,365.54 × 172,505.88
  4. Step 4: Simplify right side
    453,175.32x = 117,194,550,319.38
  5. Step 5: Solve for x
    x = 117,194,550,319.38/453,175.32
  6. Step 6: Final answer
    x = 258,607.53

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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.