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Finding the Fourth Proportional to 342,310.23, 472,351.75 and 189,324.11

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Solution

The fourth proportional to 342,310.23, 472,351.75 and 189,324.11 is: 261,247.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    342,310.23 : 472,351.75 = 189,324.11 : x
  2. Step 2: Convert to fraction form
    342,310.23/472,351.75 = 189,324.11/x
  3. Step 3: Cross multiply
    342,310.23x = 472,351.75 × 189,324.11
  4. Step 4: Simplify right side
    342,310.23x = 89,427,575,856.57
  5. Step 5: Solve for x
    x = 89,427,575,856.57/342,310.23
  6. Step 6: Final answer
    x = 261,247.16

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.