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Finding the Fourth Proportional to 259,298.67, 389,073.78 and 117,242.13

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Solution

The fourth proportional to 259,298.67, 389,073.78 and 117,242.13 is: 175,920.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    259,298.67 : 389,073.78 = 117,242.13 : x
  2. Step 2: Convert to fraction form
    259,298.67/389,073.78 = 117,242.13/x
  3. Step 3: Cross multiply
    259,298.67x = 389,073.78 × 117,242.13
  4. Step 4: Simplify right side
    259,298.67x = 45,615,838,694.35
  5. Step 5: Solve for x
    x = 45,615,838,694.35/259,298.67
  6. Step 6: Final answer
    x = 175,920.06

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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.