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Finding the Fourth Proportional to 451,100.22, 674,780.28 and 343,671.30

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Solution

The fourth proportional to 451,100.22, 674,780.28 and 343,671.30 is: 514,082.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    451,100.22 : 674,780.28 = 343,671.30 : x
  2. Step 2: Convert to fraction form
    451,100.22/674,780.28 = 343,671.30/x
  3. Step 3: Cross multiply
    451,100.22x = 674,780.28 × 343,671.30
  4. Step 4: Simplify right side
    451,100.22x = 231,902,616,041.96
  5. Step 5: Solve for x
    x = 231,902,616,041.96/451,100.22
  6. Step 6: Final answer
    x = 514,082.25

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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.