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Finding the Fourth Proportional to 341.98, 472.03 and 272.16

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Solution

The fourth proportional to 341.98, 472.03 and 272.16 is: 375.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    341.98 : 472.03 = 272.16 : x
  2. Step 2: Convert to fraction form
    341.98/472.03 = 272.16/x
  3. Step 3: Cross multiply
    341.98x = 472.03 × 272.16
  4. Step 4: Simplify right side
    341.98x = 128,467.68
  5. Step 5: Solve for x
    x = 128,467.68/341.98
  6. Step 6: Final answer
    x = 375.66

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.