Home / 220,680.32-331,069.68-80,438.94

Finding the Fourth Proportional to 220,680.32, 331,069.68 and 80,438.94

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Solution

The fourth proportional to 220,680.32, 331,069.68 and 80,438.94 is: 120,676.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    220,680.32 : 331,069.68 = 80,438.94 : x
  2. Step 2: Convert to fraction form
    220,680.32/331,069.68 = 80,438.94/x
  3. Step 3: Cross multiply
    220,680.32x = 331,069.68 × 80,438.94
  4. Step 4: Simplify right side
    220,680.32x = 26,630,894,125.34
  5. Step 5: Solve for x
    x = 26,630,894,125.34/220,680.32
  6. Step 6: Final answer
    x = 120,676.35

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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.