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Finding the Fourth Proportional to 259,337.40, 386,278.71 and 247,203

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Solution

The fourth proportional to 259,337.40, 386,278.71 and 247,203 is: 368,204.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    259,337.40 : 386,278.71 = 247,203 : x
  2. Step 2: Convert to fraction form
    259,337.40/386,278.71 = 247,203/x
  3. Step 3: Cross multiply
    259,337.40x = 386,278.71 × 247,203
  4. Step 4: Simplify right side
    259,337.40x = 95,489,255,948.13
  5. Step 5: Solve for x
    x = 95,489,255,948.13/259,337.40
  6. Step 6: Final answer
    x = 368,204.72

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.