Home / 220,675.84-331,013.28-80,377.12

Finding the Fourth Proportional to 220,675.84, 331,013.28 and 80,377.12

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Solution

The fourth proportional to 220,675.84, 331,013.28 and 80,377.12 is: 120,565.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    220,675.84 : 331,013.28 = 80,377.12 : x
  2. Step 2: Convert to fraction form
    220,675.84/331,013.28 = 80,377.12/x
  3. Step 3: Cross multiply
    220,675.84x = 331,013.28 × 80,377.12
  4. Step 4: Simplify right side
    220,675.84x = 26,605,894,128.15
  5. Step 5: Solve for x
    x = 26,605,894,128.15/220,675.84
  6. Step 6: Final answer
    x = 120,565.51

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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.