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Finding the Fourth Proportional to 342,112.85, 472,107.57 and 191,223.89

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Solution

The fourth proportional to 342,112.85, 472,107.57 and 191,223.89 is: 263,884.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    342,112.85 : 472,107.57 = 191,223.89 : x
  2. Step 2: Convert to fraction form
    342,112.85/472,107.57 = 191,223.89/x
  3. Step 3: Cross multiply
    342,112.85x = 472,107.57 × 191,223.89
  4. Step 4: Simplify right side
    342,112.85x = 90,278,246,033.85
  5. Step 5: Solve for x
    x = 90,278,246,033.85/342,112.85
  6. Step 6: Final answer
    x = 263,884.41

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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.