Home / 220,817.67-331,231.95-80,576.25

Finding the Fourth Proportional to 220,817.67, 331,231.95 and 80,576.25

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Solution

The fourth proportional to 220,817.67, 331,231.95 and 80,576.25 is: 120,866.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    220,817.67 : 331,231.95 = 80,576.25 : x
  2. Step 2: Convert to fraction form
    220,817.67/331,231.95 = 80,576.25/x
  3. Step 3: Cross multiply
    220,817.67x = 331,231.95 × 80,576.25
  4. Step 4: Simplify right side
    220,817.67x = 26,689,428,411.19
  5. Step 5: Solve for x
    x = 26,689,428,411.19/220,817.67
  6. Step 6: Final answer
    x = 120,866.36

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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.