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Finding the Fourth Proportional to 151.99, 226.65 and 143.66

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Solution

The fourth proportional to 151.99, 226.65 and 143.66 is: 214.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    151.99 : 226.65 = 143.66 : x
  2. Step 2: Convert to fraction form
    151.99/226.65 = 143.66/x
  3. Step 3: Cross multiply
    151.99x = 226.65 × 143.66
  4. Step 4: Simplify right side
    151.99x = 32,559.76
  5. Step 5: Solve for x
    x = 32,559.76/151.99
  6. Step 6: Final answer
    x = 214.22

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.