Home / 220,822.40-331,330.80-102,432.80

Finding the Fourth Proportional to 220,822.40, 331,330.80 and 102,432.80

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Solution

The fourth proportional to 220,822.40, 331,330.80 and 102,432.80 is: 153,694.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    220,822.40 : 331,330.80 = 102,432.80 : x
  2. Step 2: Convert to fraction form
    220,822.40/331,330.80 = 102,432.80/x
  3. Step 3: Cross multiply
    220,822.40x = 331,330.80 × 102,432.80
  4. Step 4: Simplify right side
    220,822.40x = 33,939,141,570.24
  5. Step 5: Solve for x
    x = 33,939,141,570.24/220,822.40
  6. Step 6: Final answer
    x = 153,694.29

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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.