Home / 257,862.24-386,634.56-89,343.36

Finding the Fourth Proportional to 257,862.24, 386,634.56 and 89,343.36

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Solution

The fourth proportional to 257,862.24, 386,634.56 and 89,343.36 is: 133,960.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    257,862.24 : 386,634.56 = 89,343.36 : x
  2. Step 2: Convert to fraction form
    257,862.24/386,634.56 = 89,343.36/x
  3. Step 3: Cross multiply
    257,862.24x = 386,634.56 × 89,343.36
  4. Step 4: Simplify right side
    257,862.24x = 34,543,230,682.52
  5. Step 5: Solve for x
    x = 34,543,230,682.52/257,862.24
  6. Step 6: Final answer
    x = 133,960.02

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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.