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Finding the Fourth Proportional to 172,331.73, 258,598.68 and 72,484.23

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Solution

The fourth proportional to 172,331.73, 258,598.68 and 72,484.23 is: 108,768.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    172,331.73 : 258,598.68 = 72,484.23 : x
  2. Step 2: Convert to fraction form
    172,331.73/258,598.68 = 72,484.23/x
  3. Step 3: Cross multiply
    172,331.73x = 258,598.68 × 72,484.23
  4. Step 4: Simplify right side
    172,331.73x = 18,744,326,198.82
  5. Step 5: Solve for x
    x = 18,744,326,198.82/172,331.73
  6. Step 6: Final answer
    x = 108,768.86

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1.5x scale

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.