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Finding the Fourth Proportional to 257,675.80, 386,705.70 and 132,952.60

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Solution

The fourth proportional to 257,675.80, 386,705.70 and 132,952.60 is: 199,527.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    257,675.80 : 386,705.70 = 132,952.60 : x
  2. Step 2: Convert to fraction form
    257,675.80/386,705.70 = 132,952.60/x
  3. Step 3: Cross multiply
    257,675.80x = 386,705.70 × 132,952.60
  4. Step 4: Simplify right side
    257,675.80x = 51,413,528,249.82
  5. Step 5: Solve for x
    x = 51,413,528,249.82/257,675.80
  6. Step 6: Final answer
    x = 199,527.97

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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.