Home / 310,981.19-466,474.38-86,359.11

Finding the Fourth Proportional to 310,981.19, 466,474.38 and 86,359.11

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Solution

The fourth proportional to 310,981.19, 466,474.38 and 86,359.11 is: 129,539.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    310,981.19 : 466,474.38 = 86,359.11 : x
  2. Step 2: Convert to fraction form
    310,981.19/466,474.38 = 86,359.11/x
  3. Step 3: Cross multiply
    310,981.19x = 466,474.38 × 86,359.11
  4. Step 4: Simplify right side
    310,981.19x = 40,284,310,221.48
  5. Step 5: Solve for x
    x = 40,284,310,221.48/310,981.19
  6. Step 6: Final answer
    x = 129,539.38

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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.