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Finding the Fourth Proportional to 317,072.48, 475,617.83 and 80,414.78

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Solution

The fourth proportional to 317,072.48, 475,617.83 and 80,414.78 is: 120,624.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    317,072.48 : 475,617.83 = 80,414.78 : x
  2. Step 2: Convert to fraction form
    317,072.48/475,617.83 = 80,414.78/x
  3. Step 3: Cross multiply
    317,072.48x = 475,617.83 × 80,414.78
  4. Step 4: Simplify right side
    317,072.48x = 38,246,700,383.36
  5. Step 5: Solve for x
    x = 38,246,700,383.36/317,072.48
  6. Step 6: Final answer
    x = 120,624.47

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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.