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Finding the Fourth Proportional to 342,352.71, 472,469.90 and 191,450.79

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Solution

The fourth proportional to 342,352.71, 472,469.90 and 191,450.79 is: 264,215.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    342,352.71 : 472,469.90 = 191,450.79 : x
  2. Step 2: Convert to fraction form
    342,352.71/472,469.90 = 191,450.79/x
  3. Step 3: Cross multiply
    342,352.71x = 472,469.90 × 191,450.79
  4. Step 4: Simplify right side
    342,352.71x = 90,454,734,648.97
  5. Step 5: Solve for x
    x = 90,454,734,648.97/342,352.71
  6. Step 6: Final answer
    x = 264,215.04

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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.