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Finding the Fourth Proportional to 259,681.38, 389,286.99 and 101,867.46

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Solution

The fourth proportional to 259,681.38, 389,286.99 and 101,867.46 is: 152,708.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    259,681.38 : 389,286.99 = 101,867.46 : x
  2. Step 2: Convert to fraction form
    259,681.38/389,286.99 = 101,867.46/x
  3. Step 3: Cross multiply
    259,681.38x = 389,286.99 × 101,867.46
  4. Step 4: Simplify right side
    259,681.38x = 39,655,676,882.35
  5. Step 5: Solve for x
    x = 39,655,676,882.35/259,681.38
  6. Step 6: Final answer
    x = 152,708.97

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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.