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Finding the Fourth Proportional to 470.80, 704.92 and 242.32

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Solution

The fourth proportional to 470.80, 704.92 and 242.32 is: 362.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    470.80 : 704.92 = 242.32 : x
  2. Step 2: Convert to fraction form
    470.80/704.92 = 242.32/x
  3. Step 3: Cross multiply
    470.80x = 704.92 × 242.32
  4. Step 4: Simplify right side
    470.80x = 170,816.21
  5. Step 5: Solve for x
    x = 170,816.21/470.80
  6. Step 6: Final answer
    x = 362.82

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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.