Home / 254,546.40-381,301.20-129,957.60

Finding the Fourth Proportional to 254,546.40, 381,301.20 and 129,957.60

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Solution

The fourth proportional to 254,546.40, 381,301.20 and 129,957.60 is: 194,671.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    254,546.40 : 381,301.20 = 129,957.60 : x
  2. Step 2: Convert to fraction form
    254,546.40/381,301.20 = 129,957.60/x
  3. Step 3: Cross multiply
    254,546.40x = 381,301.20 × 129,957.60
  4. Step 4: Simplify right side
    254,546.40x = 49,552,988,829.12
  5. Step 5: Solve for x
    x = 49,552,988,829.12/254,546.40
  6. Step 6: Final answer
    x = 194,671.73

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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.