Home / 220,868.16-331,341.20-80,822.40

Finding the Fourth Proportional to 220,868.16, 331,341.20 and 80,822.40

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Solution

The fourth proportional to 220,868.16, 331,341.20 and 80,822.40 is: 121,247.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    220,868.16 : 331,341.20 = 80,822.40 : x
  2. Step 2: Convert to fraction form
    220,868.16/331,341.20 = 80,822.40/x
  3. Step 3: Cross multiply
    220,868.16x = 331,341.20 × 80,822.40
  4. Step 4: Simplify right side
    220,868.16x = 26,779,791,002.88
  5. Step 5: Solve for x
    x = 26,779,791,002.88/220,868.16
  6. Step 6: Final answer
    x = 121,247.86

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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.