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Finding the Fourth Proportional to 356.49, 531.18 and 341.28

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Solution

The fourth proportional to 356.49, 531.18 and 341.28 is: 508.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    356.49 : 531.18 = 341.28 : x
  2. Step 2: Convert to fraction form
    356.49/531.18 = 341.28/x
  3. Step 3: Cross multiply
    356.49x = 531.18 × 341.28
  4. Step 4: Simplify right side
    356.49x = 181,281.11
  5. Step 5: Solve for x
    x = 181,281.11/356.49
  6. Step 6: Final answer
    x = 508.52

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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.