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Finding the Fourth Proportional to 485,874.67, 670,537.07 and 268,082.27

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Solution

The fourth proportional to 485,874.67, 670,537.07 and 268,082.27 is: 369,970.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    485,874.67 : 670,537.07 = 268,082.27 : x
  2. Step 2: Convert to fraction form
    485,874.67/670,537.07 = 268,082.27/x
  3. Step 3: Cross multiply
    485,874.67x = 670,537.07 × 268,082.27
  4. Step 4: Simplify right side
    485,874.67x = 179,759,100,514.96
  5. Step 5: Solve for x
    x = 179,759,100,514.96/485,874.67
  6. Step 6: Final answer
    x = 369,970.10

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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.