Home / 220,730.03-331,144.41-80,488.66

Finding the Fourth Proportional to 220,730.03, 331,144.41 and 80,488.66

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Solution

The fourth proportional to 220,730.03, 331,144.41 and 80,488.66 is: 120,750.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    220,730.03 : 331,144.41 = 80,488.66 : x
  2. Step 2: Convert to fraction form
    220,730.03/331,144.41 = 80,488.66/x
  3. Step 3: Cross multiply
    220,730.03x = 331,144.41 × 80,488.66
  4. Step 4: Simplify right side
    220,730.03x = 26,653,369,827.39
  5. Step 5: Solve for x
    x = 26,653,369,827.39/220,730.03
  6. Step 6: Final answer
    x = 120,750.99

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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.