Home / 454,405.67-681,610.13-138,861.26

Finding the Fourth Proportional to 454,405.67, 681,610.13 and 138,861.26

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Solution

The fourth proportional to 454,405.67, 681,610.13 and 138,861.26 is: 208,292.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    454,405.67 : 681,610.13 = 138,861.26 : x
  2. Step 2: Convert to fraction form
    454,405.67/681,610.13 = 138,861.26/x
  3. Step 3: Cross multiply
    454,405.67x = 681,610.13 × 138,861.26
  4. Step 4: Simplify right side
    454,405.67x = 94,649,241,480.56
  5. Step 5: Solve for x
    x = 94,649,241,480.56/454,405.67
  6. Step 6: Final answer
    x = 208,292.39

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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.