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Finding the Fourth Proportional to 314.53, 433.28 and 240.82

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Solution

The fourth proportional to 314.53, 433.28 and 240.82 is: 331.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    314.53 : 433.28 = 240.82 : x
  2. Step 2: Convert to fraction form
    314.53/433.28 = 240.82/x
  3. Step 3: Cross multiply
    314.53x = 433.28 × 240.82
  4. Step 4: Simplify right side
    314.53x = 104,342.01
  5. Step 5: Solve for x
    x = 104,342.01/314.53
  6. Step 6: Final answer
    x = 331.74

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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.