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Finding the Fourth Proportional to 340.38, 471.89 and 335.52

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Solution

The fourth proportional to 340.38, 471.89 and 335.52 is: 465.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    340.38 : 471.89 = 335.52 : x
  2. Step 2: Convert to fraction form
    340.38/471.89 = 335.52/x
  3. Step 3: Cross multiply
    340.38x = 471.89 × 335.52
  4. Step 4: Simplify right side
    340.38x = 158,326.86
  5. Step 5: Solve for x
    x = 158,326.86/340.38
  6. Step 6: Final answer
    x = 465.15

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Why These Related Problems?

These problems maintain the same ratio (1.39) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.