Home / 454,493.40-681,741.96-138,949.80

Finding the Fourth Proportional to 454,493.40, 681,741.96 and 138,949.80

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Solution

The fourth proportional to 454,493.40, 681,741.96 and 138,949.80 is: 208,425.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    454,493.40 : 681,741.96 = 138,949.80 : x
  2. Step 2: Convert to fraction form
    454,493.40/681,741.96 = 138,949.80/x
  3. Step 3: Cross multiply
    454,493.40x = 681,741.96 × 138,949.80
  4. Step 4: Simplify right side
    454,493.40x = 94,727,908,993.61
  5. Step 5: Solve for x
    x = 94,727,908,993.61/454,493.40
  6. Step 6: Final answer
    x = 208,425.27

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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.