Home / 225,405.12-338,140.65-67,646.04

Finding the Fourth Proportional to 225,405.12, 338,140.65 and 67,646.04

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Solution

The fourth proportional to 225,405.12, 338,140.65 and 67,646.04 is: 101,478.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    225,405.12 : 338,140.65 = 67,646.04 : x
  2. Step 2: Convert to fraction form
    225,405.12/338,140.65 = 67,646.04/x
  3. Step 3: Cross multiply
    225,405.12x = 338,140.65 × 67,646.04
  4. Step 4: Simplify right side
    225,405.12x = 22,873,875,935.53
  5. Step 5: Solve for x
    x = 22,873,875,935.53/225,405.12
  6. Step 6: Final answer
    x = 101,478.95

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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.