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Finding the Fourth Proportional to 416.80, 574.94 and 242.12

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Solution

The fourth proportional to 416.80, 574.94 and 242.12 is: 333.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    416.80 : 574.94 = 242.12 : x
  2. Step 2: Convert to fraction form
    416.80/574.94 = 242.12/x
  3. Step 3: Cross multiply
    416.80x = 574.94 × 242.12
  4. Step 4: Simplify right side
    416.80x = 139,204.47
  5. Step 5: Solve for x
    x = 139,204.47/416.80
  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.