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Finding the Fourth Proportional to 275,048.70, 412,610.42 and 85,473.63

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Solution

The fourth proportional to 275,048.70, 412,610.42 and 85,473.63 is: 128,222.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    275,048.70 : 412,610.42 = 85,473.63 : x
  2. Step 2: Convert to fraction form
    275,048.70/412,610.42 = 85,473.63/x
  3. Step 3: Cross multiply
    275,048.70x = 412,610.42 × 85,473.63
  4. Step 4: Simplify right side
    275,048.70x = 35,267,310,586.91
  5. Step 5: Solve for x
    x = 35,267,310,586.91/275,048.70
  6. Step 6: Final answer
    x = 128,222.06

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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.