Home / 310,550.19-465,799.29-85,913.43

Finding the Fourth Proportional to 310,550.19, 465,799.29 and 85,913.43

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Solution

The fourth proportional to 310,550.19, 465,799.29 and 85,913.43 is: 128,862.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    310,550.19 : 465,799.29 = 85,913.43 : x
  2. Step 2: Convert to fraction form
    310,550.19/465,799.29 = 85,913.43/x
  3. Step 3: Cross multiply
    310,550.19x = 465,799.29 × 85,913.43
  4. Step 4: Simplify right side
    310,550.19x = 40,018,414,695.46
  5. Step 5: Solve for x
    x = 40,018,414,695.46/310,550.19
  6. Step 6: Final answer
    x = 128,862.95

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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.