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Finding the Fourth Proportional to 341.47, 470.49 and 230.75

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Solution

The fourth proportional to 341.47, 470.49 and 230.75 is: 317.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    341.47 : 470.49 = 230.75 : x
  2. Step 2: Convert to fraction form
    341.47/470.49 = 230.75/x
  3. Step 3: Cross multiply
    341.47x = 470.49 × 230.75
  4. Step 4: Simplify right side
    341.47x = 108,565.57
  5. Step 5: Solve for x
    x = 108,565.57/341.47
  6. Step 6: Final answer
    x = 317.94

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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.