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Finding the Fourth Proportional to 485,227.67, 669,596.42 and 270,356.54

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Solution

The fourth proportional to 485,227.67, 669,596.42 and 270,356.54 is: 373,082.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    485,227.67 : 669,596.42 = 270,356.54 : x
  2. Step 2: Convert to fraction form
    485,227.67/669,596.42 = 270,356.54/x
  3. Step 3: Cross multiply
    485,227.67x = 669,596.42 × 270,356.54
  4. Step 4: Simplify right side
    485,227.67x = 181,029,768,635.50
  5. Step 5: Solve for x
    x = 181,029,768,635.50/485,227.67
  6. Step 6: Final answer
    x = 373,082.13

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.