Home / 221,432.41-305,471.49-130,727.61

Finding the Fourth Proportional to 221,432.41, 305,471.49 and 130,727.61

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Solution

The fourth proportional to 221,432.41, 305,471.49 and 130,727.61 is: 180,341.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    221,432.41 : 305,471.49 = 130,727.61 : x
  2. Step 2: Convert to fraction form
    221,432.41/305,471.49 = 130,727.61/x
  3. Step 3: Cross multiply
    221,432.41x = 305,471.49 × 130,727.61
  4. Step 4: Simplify right side
    221,432.41x = 39,933,557,810.84
  5. Step 5: Solve for x
    x = 39,933,557,810.84/221,432.41
  6. Step 6: Final answer
    x = 180,341.97

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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.