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Finding the Fourth Proportional to 342,125.91, 472,114.71 and 189,155.25

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Solution

The fourth proportional to 342,125.91, 472,114.71 and 189,155.25 is: 261,023.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    342,125.91 : 472,114.71 = 189,155.25 : x
  2. Step 2: Convert to fraction form
    342,125.91/472,114.71 = 189,155.25/x
  3. Step 3: Cross multiply
    342,125.91x = 472,114.71 × 189,155.25
  4. Step 4: Simplify right side
    342,125.91x = 89,302,975,998.73
  5. Step 5: Solve for x
    x = 89,302,975,998.73/342,125.91
  6. Step 6: Final answer
    x = 261,023.71

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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.