Home / 221,116.46-330,065.90-193,122.86

Finding the Fourth Proportional to 221,116.46, 330,065.90 and 193,122.86

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Solution

The fourth proportional to 221,116.46, 330,065.90 and 193,122.86 is: 288,279.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    221,116.46 : 330,065.90 = 193,122.86 : x
  2. Step 2: Convert to fraction form
    221,116.46/330,065.90 = 193,122.86/x
  3. Step 3: Cross multiply
    221,116.46x = 330,065.90 × 193,122.86
  4. Step 4: Simplify right side
    221,116.46x = 63,743,268,704.74
  5. Step 5: Solve for x
    x = 63,743,268,704.74/221,116.46
  6. Step 6: Final answer
    x = 288,279.17

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.