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Finding the Fourth Proportional to 341.25, 511.37 and 135.62

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Solution

The fourth proportional to 341.25, 511.37 and 135.62 is: 203.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    341.25 : 511.37 = 135.62 : x
  2. Step 2: Convert to fraction form
    341.25/511.37 = 135.62/x
  3. Step 3: Cross multiply
    341.25x = 511.37 × 135.62
  4. Step 4: Simplify right side
    341.25x = 69,348.76
  5. Step 5: Solve for x
    x = 69,348.76/341.25
  6. Step 6: Final answer
    x = 203.22

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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.