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Finding the Fourth Proportional to 341.16, 514.80 and 328.56

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Solution

The fourth proportional to 341.16, 514.80 and 328.56 is: 495.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    341.16 : 514.80 = 328.56 : x
  2. Step 2: Convert to fraction form
    341.16/514.80 = 328.56/x
  3. Step 3: Cross multiply
    341.16x = 514.80 × 328.56
  4. Step 4: Simplify right side
    341.16x = 169,142.69
  5. Step 5: Solve for x
    x = 169,142.69/341.16
  6. Step 6: Final answer
    x = 495.79

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Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.