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Finding the Fourth Proportional to 342,604.33, 513,869.56 and 89,910.14

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Solution

The fourth proportional to 342,604.33, 513,869.56 and 89,910.14 is: 134,855.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    342,604.33 : 513,869.56 = 89,910.14 : x
  2. Step 2: Convert to fraction form
    342,604.33/513,869.56 = 89,910.14/x
  3. Step 3: Cross multiply
    342,604.33x = 513,869.56 × 89,910.14
  4. Step 4: Simplify right side
    342,604.33x = 46,202,081,287.22
  5. Step 5: Solve for x
    x = 46,202,081,287.22/342,604.33
  6. Step 6: Final answer
    x = 134,855.51

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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.