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Finding the Fourth Proportional to 342,080.31, 512,847.45 and 171,188.84

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Solution

The fourth proportional to 342,080.31, 512,847.45 and 171,188.84 is: 256,646.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    342,080.31 : 512,847.45 = 171,188.84 : x
  2. Step 2: Convert to fraction form
    342,080.31/512,847.45 = 171,188.84/x
  3. Step 3: Cross multiply
    342,080.31x = 512,847.45 × 171,188.84
  4. Step 4: Simplify right side
    342,080.31x = 87,793,761,344.58
  5. Step 5: Solve for x
    x = 87,793,761,344.58/342,080.31
  6. Step 6: Final answer
    x = 256,646.63

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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.