Home / 221,710.38-305,960.61-126,216.95

Finding the Fourth Proportional to 221,710.38, 305,960.61 and 126,216.95

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Solution

The fourth proportional to 221,710.38, 305,960.61 and 126,216.95 is: 174,179.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    221,710.38 : 305,960.61 = 126,216.95 : x
  2. Step 2: Convert to fraction form
    221,710.38/305,960.61 = 126,216.95/x
  3. Step 3: Cross multiply
    221,710.38x = 305,960.61 × 126,216.95
  4. Step 4: Simplify right side
    221,710.38x = 38,617,413,484.54
  5. Step 5: Solve for x
    x = 38,617,413,484.54/221,710.38
  6. Step 6: Final answer
    x = 174,179.55

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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.