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Finding the Fourth Proportional to 341.19, 511.82 and 156.09

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Solution

The fourth proportional to 341.19, 511.82 and 156.09 is: 234.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    341.19 : 511.82 = 156.09 : x
  2. Step 2: Convert to fraction form
    341.19/511.82 = 156.09/x
  3. Step 3: Cross multiply
    341.19x = 511.82 × 156.09
  4. Step 4: Simplify right side
    341.19x = 79,887.39
  5. Step 5: Solve for x
    x = 79,887.39/341.19
  6. Step 6: Final answer
    x = 234.15

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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.