Home / 323,721.20-485,617.08-124,211

Finding the Fourth Proportional to 323,721.20, 485,617.08 and 124,211

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Solution

The fourth proportional to 323,721.20, 485,617.08 and 124,211 is: 186,330.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    323,721.20 : 485,617.08 = 124,211 : x
  2. Step 2: Convert to fraction form
    323,721.20/485,617.08 = 124,211/x
  3. Step 3: Cross multiply
    323,721.20x = 485,617.08 × 124,211
  4. Step 4: Simplify right side
    323,721.20x = 60,318,983,123.88
  5. Step 5: Solve for x
    x = 60,318,983,123.88/323,721.20
  6. Step 6: Final answer
    x = 186,330.04

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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.