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Finding the Fourth Proportional to 254,229.60, 381,344.40 and 104,420.10

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Solution

The fourth proportional to 254,229.60, 381,344.40 and 104,420.10 is: 156,630.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    254,229.60 : 381,344.40 = 104,420.10 : x
  2. Step 2: Convert to fraction form
    254,229.60/381,344.40 = 104,420.10/x
  3. Step 3: Cross multiply
    254,229.60x = 381,344.40 × 104,420.10
  4. Step 4: Simplify right side
    254,229.60x = 39,820,020,382.44
  5. Step 5: Solve for x
    x = 39,820,020,382.44/254,229.60
  6. Step 6: Final answer
    x = 156,630.15

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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.