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Finding the Fourth Proportional to 230,771, 318,463.98 and 124,787

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Solution

The fourth proportional to 230,771, 318,463.98 and 124,787 is: 172,206.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    230,771 : 318,463.98 = 124,787 : x
  2. Step 2: Convert to fraction form
    230,771/318,463.98 = 124,787/x
  3. Step 3: Cross multiply
    230,771x = 318,463.98 × 124,787
  4. Step 4: Simplify right side
    230,771x = 39,740,164,672.26
  5. Step 5: Solve for x
    x = 39,740,164,672.26/230,771
  6. Step 6: Final answer
    x = 172,206.06

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.