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Finding the Fourth Proportional to 343.76, 473.96 and 240.08

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Solution

The fourth proportional to 343.76, 473.96 and 240.08 is: 331.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    343.76 : 473.96 = 240.08 : x
  2. Step 2: Convert to fraction form
    343.76/473.96 = 240.08/x
  3. Step 3: Cross multiply
    343.76x = 473.96 × 240.08
  4. Step 4: Simplify right side
    343.76x = 113,788.32
  5. Step 5: Solve for x
    x = 113,788.32/343.76
  6. Step 6: Final answer
    x = 331.01

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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.