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Finding the Fourth Proportional to 175.81, 242.43 and 151.01

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Solution

The fourth proportional to 175.81, 242.43 and 151.01 is: 208.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    175.81 : 242.43 = 151.01 : x
  2. Step 2: Convert to fraction form
    175.81/242.43 = 151.01/x
  3. Step 3: Cross multiply
    175.81x = 242.43 × 151.01
  4. Step 4: Simplify right side
    175.81x = 36,608.14
  5. Step 5: Solve for x
    x = 36,608.14/175.81
  6. Step 6: Final answer
    x = 208.23

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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.