Home / 218,836.17-301,989.74-123,340.95

Finding the Fourth Proportional to 218,836.17, 301,989.74 and 123,340.95

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Solution

The fourth proportional to 218,836.17, 301,989.74 and 123,340.95 is: 170,208.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    218,836.17 : 301,989.74 = 123,340.95 : x
  2. Step 2: Convert to fraction form
    218,836.17/301,989.74 = 123,340.95/x
  3. Step 3: Cross multiply
    218,836.17x = 301,989.74 × 123,340.95
  4. Step 4: Simplify right side
    218,836.17x = 37,247,700,805.15
  5. Step 5: Solve for x
    x = 37,247,700,805.15/218,836.17
  6. Step 6: Final answer
    x = 170,208.16

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.