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Finding the Fourth Proportional to 387.32, 534.36 and 271.04

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Solution

The fourth proportional to 387.32, 534.36 and 271.04 is: 373.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    387.32 : 534.36 = 271.04 : x
  2. Step 2: Convert to fraction form
    387.32/534.36 = 271.04/x
  3. Step 3: Cross multiply
    387.32x = 534.36 × 271.04
  4. Step 4: Simplify right side
    387.32x = 144,832.93
  5. Step 5: Solve for x
    x = 144,832.93/387.32
  6. Step 6: Final answer
    x = 373.94

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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.