Home / 220,788.52-331,223.10-102,443.56

Finding the Fourth Proportional to 220,788.52, 331,223.10 and 102,443.56

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Solution

The fourth proportional to 220,788.52, 331,223.10 and 102,443.56 is: 153,684.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    220,788.52 : 331,223.10 = 102,443.56 : x
  2. Step 2: Convert to fraction form
    220,788.52/331,223.10 = 102,443.56/x
  3. Step 3: Cross multiply
    220,788.52x = 331,223.10 × 102,443.56
  4. Step 4: Simplify right side
    220,788.52x = 33,931,673,518.24
  5. Step 5: Solve for x
    x = 33,931,673,518.24/220,788.52
  6. Step 6: Final answer
    x = 153,684.05

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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.