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Finding the Fourth Proportional to 512,505.50, 768,500.16 and 170,827.92

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Solution

The fourth proportional to 512,505.50, 768,500.16 and 170,827.92 is: 256,155.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    512,505.50 : 768,500.16 = 170,827.92 : x
  2. Step 2: Convert to fraction form
    512,505.50/768,500.16 = 170,827.92/x
  3. Step 3: Cross multiply
    512,505.50x = 768,500.16 × 170,827.92
  4. Step 4: Simplify right side
    512,505.50x = 131,281,283,852.47
  5. Step 5: Solve for x
    x = 131,281,283,852.47/512,505.50
  6. Step 6: Final answer
    x = 256,155.85

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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.