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Finding the Fourth Proportional to 275,313.10, 412,969.65 and 170,337.10

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Solution

The fourth proportional to 275,313.10, 412,969.65 and 170,337.10 is: 255,505.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    275,313.10 : 412,969.65 = 170,337.10 : x
  2. Step 2: Convert to fraction form
    275,313.10/412,969.65 = 170,337.10/x
  3. Step 3: Cross multiply
    275,313.10x = 412,969.65 × 170,337.10
  4. Step 4: Simplify right side
    275,313.10x = 70,344,052,569.02
  5. Step 5: Solve for x
    x = 70,344,052,569.02/275,313.10
  6. Step 6: Final answer
    x = 255,505.65

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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.