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Finding the Fourth Proportional to 436,808.19, 655,211.84 and 137,314.95

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Solution

The fourth proportional to 436,808.19, 655,211.84 and 137,314.95 is: 205,972.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    436,808.19 : 655,211.84 = 137,314.95 : x
  2. Step 2: Convert to fraction form
    436,808.19/655,211.84 = 137,314.95/x
  3. Step 3: Cross multiply
    436,808.19x = 655,211.84 × 137,314.95
  4. Step 4: Simplify right side
    436,808.19x = 89,970,377,905.39
  5. Step 5: Solve for x
    x = 89,970,377,905.39/436,808.19
  6. Step 6: Final answer
    x = 205,972.28

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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.