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Finding the Fourth Proportional to 152.48, 211.48 and 150.66

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Solution

The fourth proportional to 152.48, 211.48 and 150.66 is: 208.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    152.48 : 211.48 = 150.66 : x
  2. Step 2: Convert to fraction form
    152.48/211.48 = 150.66/x
  3. Step 3: Cross multiply
    152.48x = 211.48 × 150.66
  4. Step 4: Simplify right side
    152.48x = 31,861.20
  5. Step 5: Solve for x
    x = 31,861.20/152.48
  6. Step 6: Final answer
    x = 208.95

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Why These Related Problems?

These problems maintain the same ratio (1.39) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.