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Finding the Fourth Proportional to 461.67, 637.07 and 275.19

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Solution

The fourth proportional to 461.67, 637.07 and 275.19 is: 379.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    461.67 : 637.07 = 275.19 : x
  2. Step 2: Convert to fraction form
    461.67/637.07 = 275.19/x
  3. Step 3: Cross multiply
    461.67x = 637.07 × 275.19
  4. Step 4: Simplify right side
    461.67x = 175,313.92
  5. Step 5: Solve for x
    x = 175,313.92/461.67
  6. Step 6: Final answer
    x = 379.74

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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.