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Finding the Fourth Proportional to 475.15, 655.67 and 265.33

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Solution

The fourth proportional to 475.15, 655.67 and 265.33 is: 366.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    475.15 : 655.67 = 265.33 : x
  2. Step 2: Convert to fraction form
    475.15/655.67 = 265.33/x
  3. Step 3: Cross multiply
    475.15x = 655.67 × 265.33
  4. Step 4: Simplify right side
    475.15x = 173,968.92
  5. Step 5: Solve for x
    x = 173,968.92/475.15
  6. Step 6: Final answer
    x = 366.13

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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.