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Finding the Fourth Proportional to 242.68, 363.98 and 127.06

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Solution

The fourth proportional to 242.68, 363.98 and 127.06 is: 190.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    242.68 : 363.98 = 127.06 : x
  2. Step 2: Convert to fraction form
    242.68/363.98 = 127.06/x
  3. Step 3: Cross multiply
    242.68x = 363.98 × 127.06
  4. Step 4: Simplify right side
    242.68x = 46,247.30
  5. Step 5: Solve for x
    x = 46,247.30/242.68
  6. Step 6: Final answer
    x = 190.57

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.