Home / 220,746.80-331,126.28-80,609.84

Finding the Fourth Proportional to 220,746.80, 331,126.28 and 80,609.84

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Solution

The fourth proportional to 220,746.80, 331,126.28 and 80,609.84 is: 120,916.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    220,746.80 : 331,126.28 = 80,609.84 : x
  2. Step 2: Convert to fraction form
    220,746.80/331,126.28 = 80,609.84/x
  3. Step 3: Cross multiply
    220,746.80x = 331,126.28 × 80,609.84
  4. Step 4: Simplify right side
    220,746.80x = 26,692,036,450.60
  5. Step 5: Solve for x
    x = 26,692,036,450.60/220,746.80
  6. Step 6: Final answer
    x = 120,916.98

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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.