Home / 218,989.40-328,301.85-92,726.60

Finding the Fourth Proportional to 218,989.40, 328,301.85 and 92,726.60

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Solution

The fourth proportional to 218,989.40, 328,301.85 and 92,726.60 is: 139,012.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    218,989.40 : 328,301.85 = 92,726.60 : x
  2. Step 2: Convert to fraction form
    218,989.40/328,301.85 = 92,726.60/x
  3. Step 3: Cross multiply
    218,989.40x = 328,301.85 × 92,726.60
  4. Step 4: Simplify right side
    218,989.40x = 30,442,314,324.21
  5. Step 5: Solve for x
    x = 30,442,314,324.21/218,989.40
  6. Step 6: Final answer
    x = 139,012.73

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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.