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Finding the Fourth Proportional to 328.84, 453.82 and 240.34

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Solution

The fourth proportional to 328.84, 453.82 and 240.34 is: 331.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    328.84 : 453.82 = 240.34 : x
  2. Step 2: Convert to fraction form
    328.84/453.82 = 240.34/x
  3. Step 3: Cross multiply
    328.84x = 453.82 × 240.34
  4. Step 4: Simplify right side
    328.84x = 109,071.10
  5. Step 5: Solve for x
    x = 109,071.10/328.84
  6. Step 6: Final answer
    x = 331.68

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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.