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Finding the Fourth Proportional to 323,876.12, 485,828.76 and 99,220.22

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Solution

The fourth proportional to 323,876.12, 485,828.76 and 99,220.22 is: 148,834.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    323,876.12 : 485,828.76 = 99,220.22 : x
  2. Step 2: Convert to fraction form
    323,876.12/485,828.76 = 99,220.22/x
  3. Step 3: Cross multiply
    323,876.12x = 485,828.76 × 99,220.22
  4. Step 4: Simplify right side
    323,876.12x = 48,204,036,449.53
  5. Step 5: Solve for x
    x = 48,204,036,449.53/323,876.12
  6. Step 6: Final answer
    x = 148,834.80

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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.