Home / 220,521.30-330,417.15-126,863.70

Finding the Fourth Proportional to 220,521.30, 330,417.15 and 126,863.70

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Solution

The fourth proportional to 220,521.30, 330,417.15 and 126,863.70 is: 190,085.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    220,521.30 : 330,417.15 = 126,863.70 : x
  2. Step 2: Convert to fraction form
    220,521.30/330,417.15 = 126,863.70/x
  3. Step 3: Cross multiply
    220,521.30x = 330,417.15 × 126,863.70
  4. Step 4: Simplify right side
    220,521.30x = 41,917,942,192.46
  5. Step 5: Solve for x
    x = 41,917,942,192.46/220,521.30
  6. Step 6: Final answer
    x = 190,085.68

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1.5x scale

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.