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Finding the Fourth Proportional to 342,110.57, 472,093.52 and 189,139.85

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Solution

The fourth proportional to 342,110.57, 472,093.52 and 189,139.85 is: 261,002.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    342,110.57 : 472,093.52 = 189,139.85 : x
  2. Step 2: Convert to fraction form
    342,110.57/472,093.52 = 189,139.85/x
  3. Step 3: Cross multiply
    342,110.57x = 472,093.52 × 189,139.85
  4. Step 4: Simplify right side
    342,110.57x = 89,291,694,252.61
  5. Step 5: Solve for x
    x = 89,291,694,252.61/342,110.57
  6. Step 6: Final answer
    x = 261,002.45

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1.5x scale

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.