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Finding the Fourth Proportional to 341.23, 511.28 and 328.42

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Solution

The fourth proportional to 341.23, 511.28 and 328.42 is: 492.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    341.23 : 511.28 = 328.42 : x
  2. Step 2: Convert to fraction form
    341.23/511.28 = 328.42/x
  3. Step 3: Cross multiply
    341.23x = 511.28 × 328.42
  4. Step 4: Simplify right side
    341.23x = 167,914.58
  5. Step 5: Solve for x
    x = 167,914.58/341.23
  6. Step 6: Final answer
    x = 492.09

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.