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Finding the Fourth Proportional to 342,091.71, 472,161.51 and 198,934.35

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Solution

The fourth proportional to 342,091.71, 472,161.51 and 198,934.35 is: 274,572.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    342,091.71 : 472,161.51 = 198,934.35 : x
  2. Step 2: Convert to fraction form
    342,091.71/472,161.51 = 198,934.35/x
  3. Step 3: Cross multiply
    342,091.71x = 472,161.51 × 198,934.35
  4. Step 4: Simplify right side
    342,091.71x = 93,929,143,086.87
  5. Step 5: Solve for x
    x = 93,929,143,086.87/342,091.71
  6. Step 6: Final answer
    x = 274,572.99

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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.