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Finding the Fourth Proportional to 343,854.30, 515,781.45 and 107,195.10

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Solution

The fourth proportional to 343,854.30, 515,781.45 and 107,195.10 is: 160,792.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    343,854.30 : 515,781.45 = 107,195.10 : x
  2. Step 2: Convert to fraction form
    343,854.30/515,781.45 = 107,195.10/x
  3. Step 3: Cross multiply
    343,854.30x = 515,781.45 × 107,195.10
  4. Step 4: Simplify right side
    343,854.30x = 55,289,244,110.90
  5. Step 5: Solve for x
    x = 55,289,244,110.90/343,854.30
  6. Step 6: Final answer
    x = 160,792.65

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.