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Finding the Fourth Proportional to 262,177.48, 391,487.81 and 208,264.29

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Solution

The fourth proportional to 262,177.48, 391,487.81 and 208,264.29 is: 310,983.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    262,177.48 : 391,487.81 = 208,264.29 : x
  2. Step 2: Convert to fraction form
    262,177.48/391,487.81 = 208,264.29/x
  3. Step 3: Cross multiply
    262,177.48x = 391,487.81 × 208,264.29
  4. Step 4: Simplify right side
    262,177.48x = 81,532,930,793.30
  5. Step 5: Solve for x
    x = 81,532,930,793.30/262,177.48
  6. Step 6: Final answer
    x = 310,983.73

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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.