Home / 454,276.60-681,512.10-138,765.40

Finding the Fourth Proportional to 454,276.60, 681,512.10 and 138,765.40

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Solution

The fourth proportional to 454,276.60, 681,512.10 and 138,765.40 is: 208,177.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    454,276.60 : 681,512.10 = 138,765.40 : x
  2. Step 2: Convert to fraction form
    454,276.60/681,512.10 = 138,765.40/x
  3. Step 3: Cross multiply
    454,276.60x = 681,512.10 × 138,765.40
  4. Step 4: Simplify right side
    454,276.60x = 94,570,299,161.34
  5. Step 5: Solve for x
    x = 94,570,299,161.34/454,276.60
  6. Step 6: Final answer
    x = 208,177.79

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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.