Home / 221,922.96-306,253.08-126,429.84

Finding the Fourth Proportional to 221,922.96, 306,253.08 and 126,429.84

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Solution

The fourth proportional to 221,922.96, 306,253.08 and 126,429.84 is: 174,472.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    221,922.96 : 306,253.08 = 126,429.84 : x
  2. Step 2: Convert to fraction form
    221,922.96/306,253.08 = 126,429.84/x
  3. Step 3: Cross multiply
    221,922.96x = 306,253.08 × 126,429.84
  4. Step 4: Simplify right side
    221,922.96x = 38,719,527,903.91
  5. Step 5: Solve for x
    x = 38,719,527,903.91/221,922.96
  6. Step 6: Final answer
    x = 174,472.83

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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.