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Finding the Fourth Proportional to 341.11, 513.96 and 281.57

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Solution

The fourth proportional to 341.11, 513.96 and 281.57 is: 424.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    341.11 : 513.96 = 281.57 : x
  2. Step 2: Convert to fraction form
    341.11/513.96 = 281.57/x
  3. Step 3: Cross multiply
    341.11x = 513.96 × 281.57
  4. Step 4: Simplify right side
    341.11x = 144,714.31
  5. Step 5: Solve for x
    x = 144,714.31/341.11
  6. Step 6: Final answer
    x = 424.25

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Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.