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Finding the Fourth Proportional to 211.41, 318.67 and 175.57

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Solution

The fourth proportional to 211.41, 318.67 and 175.57 is: 264.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    211.41 : 318.67 = 175.57 : x
  2. Step 2: Convert to fraction form
    211.41/318.67 = 175.57/x
  3. Step 3: Cross multiply
    211.41x = 318.67 × 175.57
  4. Step 4: Simplify right side
    211.41x = 55,948.89
  5. Step 5: Solve for x
    x = 55,948.89/211.41
  6. Step 6: Final answer
    x = 264.65

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Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.