Home / 221,901.16-306,148.80-126,340.19

Finding the Fourth Proportional to 221,901.16, 306,148.80 and 126,340.19

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Solution

The fourth proportional to 221,901.16, 306,148.80 and 126,340.19 is: 174,306.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    221,901.16 : 306,148.80 = 126,340.19 : x
  2. Step 2: Convert to fraction form
    221,901.16/306,148.80 = 126,340.19/x
  3. Step 3: Cross multiply
    221,901.16x = 306,148.80 × 126,340.19
  4. Step 4: Simplify right side
    221,901.16x = 38,678,897,560.27
  5. Step 5: Solve for x
    x = 38,678,897,560.27/221,901.16
  6. Step 6: Final answer
    x = 174,306.87

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1.5x scale

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.