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Finding the Fourth Proportional to 342,106.74, 513,181.17 and 131,744.88

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Solution

The fourth proportional to 342,106.74, 513,181.17 and 131,744.88 is: 197,625.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    342,106.74 : 513,181.17 = 131,744.88 : x
  2. Step 2: Convert to fraction form
    342,106.74/513,181.17 = 131,744.88/x
  3. Step 3: Cross multiply
    342,106.74x = 513,181.17 × 131,744.88
  4. Step 4: Simplify right side
    342,106.74x = 67,608,991,659.91
  5. Step 5: Solve for x
    x = 67,608,991,659.91/342,106.74
  6. Step 6: Final answer
    x = 197,625.43

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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.