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Finding the Fourth Proportional to 254,391.32, 381,459 and 104,589.92

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Solution

The fourth proportional to 254,391.32, 381,459 and 104,589.92 is: 156,832.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    254,391.32 : 381,459 = 104,589.92 : x
  2. Step 2: Convert to fraction form
    254,391.32/381,459 = 104,589.92/x
  3. Step 3: Cross multiply
    254,391.32x = 381,459 × 104,589.92
  4. Step 4: Simplify right side
    254,391.32x = 39,896,766,293.28
  5. Step 5: Solve for x
    x = 39,896,766,293.28/254,391.32
  6. Step 6: Final answer
    x = 156,832.26

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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.