Home / 257,682.24-386,364.60-89,163.36

Finding the Fourth Proportional to 257,682.24, 386,364.60 and 89,163.36

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Solution

The fourth proportional to 257,682.24, 386,364.60 and 89,163.36 is: 133,690.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    257,682.24 : 386,364.60 = 89,163.36 : x
  2. Step 2: Convert to fraction form
    257,682.24/386,364.60 = 89,163.36/x
  3. Step 3: Cross multiply
    257,682.24x = 386,364.60 × 89,163.36
  4. Step 4: Simplify right side
    257,682.24x = 34,449,565,921.06
  5. Step 5: Solve for x
    x = 34,449,565,921.06/257,682.24
  6. Step 6: Final answer
    x = 133,690.11

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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.