Home / 342,711.48-472,956.62-189,749.66

Finding the Fourth Proportional to 342,711.48, 472,956.62 and 189,749.66

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Solution

The fourth proportional to 342,711.48, 472,956.62 and 189,749.66 is: 261,862.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    342,711.48 : 472,956.62 = 189,749.66 : x
  2. Step 2: Convert to fraction form
    342,711.48/472,956.62 = 189,749.66/x
  3. Step 3: Cross multiply
    342,711.48x = 472,956.62 × 189,749.66
  4. Step 4: Simplify right side
    342,711.48x = 89,743,358,073.39
  5. Step 5: Solve for x
    x = 89,743,358,073.39/342,711.48
  6. Step 6: Final answer
    x = 261,862.72

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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.