Home / 435,839.20-653,629.20-169,446.40

Finding the Fourth Proportional to 435,839.20, 653,629.20 and 169,446.40

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Solution

The fourth proportional to 435,839.20, 653,629.20 and 169,446.40 is: 254,119.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    435,839.20 : 653,629.20 = 169,446.40 : x
  2. Step 2: Convert to fraction form
    435,839.20/653,629.20 = 169,446.40/x
  3. Step 3: Cross multiply
    435,839.20x = 653,629.20 × 169,446.40
  4. Step 4: Simplify right side
    435,839.20x = 110,755,114,874.88
  5. Step 5: Solve for x
    x = 110,755,114,874.88/435,839.20
  6. Step 6: Final answer
    x = 254,119.21

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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.