Home / 454,376.34-681,687.22-138,824.64

Finding the Fourth Proportional to 454,376.34, 681,687.22 and 138,824.64

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Solution

The fourth proportional to 454,376.34, 681,687.22 and 138,824.64 is: 208,274.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    454,376.34 : 681,687.22 = 138,824.64 : x
  2. Step 2: Convert to fraction form
    454,376.34/681,687.22 = 138,824.64/x
  3. Step 3: Cross multiply
    454,376.34x = 681,687.22 × 138,824.64
  4. Step 4: Simplify right side
    454,376.34x = 94,634,982,909.10
  5. Step 5: Solve for x
    x = 94,634,982,909.10/454,376.34
  6. Step 6: Final answer
    x = 208,274.45

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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.