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Finding the Fourth Proportional to 342,042.92, 472,015.86 and 191,139.92

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Solution

The fourth proportional to 342,042.92, 472,015.86 and 191,139.92 is: 263,771.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    342,042.92 : 472,015.86 = 191,139.92 : x
  2. Step 2: Convert to fraction form
    342,042.92/472,015.86 = 191,139.92/x
  3. Step 3: Cross multiply
    342,042.92x = 472,015.86 × 191,139.92
  4. Step 4: Simplify right side
    342,042.92x = 90,221,073,719.13
  5. Step 5: Solve for x
    x = 90,221,073,719.13/342,042.92
  6. Step 6: Final answer
    x = 263,771.21

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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.