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Finding the Fourth Proportional to 349.15, 523.73 and 271.93

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Solution

The fourth proportional to 349.15, 523.73 and 271.93 is: 407.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    349.15 : 523.73 = 271.93 : x
  2. Step 2: Convert to fraction form
    349.15/523.73 = 271.93/x
  3. Step 3: Cross multiply
    349.15x = 523.73 × 271.93
  4. Step 4: Simplify right side
    349.15x = 142,417.90
  5. Step 5: Solve for x
    x = 142,417.90/349.15
  6. Step 6: Final answer
    x = 407.90

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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.