Home / 454,133.48-681,194.74-138,591.28

Finding the Fourth Proportional to 454,133.48, 681,194.74 and 138,591.28

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Solution

The fourth proportional to 454,133.48, 681,194.74 and 138,591.28 is: 207,885.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    454,133.48 : 681,194.74 = 138,591.28 : x
  2. Step 2: Convert to fraction form
    454,133.48/681,194.74 = 138,591.28/x
  3. Step 3: Cross multiply
    454,133.48x = 681,194.74 × 138,591.28
  4. Step 4: Simplify right side
    454,133.48x = 94,407,650,945.87
  5. Step 5: Solve for x
    x = 94,407,650,945.87/454,133.48
  6. Step 6: Final answer
    x = 207,885.25

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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.