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Finding the Fourth Proportional to 169,974.72, 254,979.90 and 57,650.40

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Solution

The fourth proportional to 169,974.72, 254,979.90 and 57,650.40 is: 86,481.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    169,974.72 : 254,979.90 = 57,650.40 : x
  2. Step 2: Convert to fraction form
    169,974.72/254,979.90 = 57,650.40/x
  3. Step 3: Cross multiply
    169,974.72x = 254,979.90 × 57,650.40
  4. Step 4: Simplify right side
    169,974.72x = 14,699,693,226.96
  5. Step 5: Solve for x
    x = 14,699,693,226.96/169,974.72
  6. Step 6: Final answer
    x = 86,481.64

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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.