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Finding the Fourth Proportional to 359.03, 494.70 and 242.39

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Solution

The fourth proportional to 359.03, 494.70 and 242.39 is: 333.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    359.03 : 494.70 = 242.39 : x
  2. Step 2: Convert to fraction form
    359.03/494.70 = 242.39/x
  3. Step 3: Cross multiply
    359.03x = 494.70 × 242.39
  4. Step 4: Simplify right side
    359.03x = 119,910.33
  5. Step 5: Solve for x
    x = 119,910.33/359.03
  6. Step 6: Final answer
    x = 333.98

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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.