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Finding the Fourth Proportional to 341.12, 508.14 and 329.28

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Solution

The fourth proportional to 341.12, 508.14 and 329.28 is: 490.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    341.12 : 508.14 = 329.28 : x
  2. Step 2: Convert to fraction form
    341.12/508.14 = 329.28/x
  3. Step 3: Cross multiply
    341.12x = 508.14 × 329.28
  4. Step 4: Simplify right side
    341.12x = 167,320.34
  5. Step 5: Solve for x
    x = 167,320.34/341.12
  6. Step 6: Final answer
    x = 490.50

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.