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Finding the Fourth Proportional to 436.98, 654.62 and 263.14

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Solution

The fourth proportional to 436.98, 654.62 and 263.14 is: 394.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    436.98 : 654.62 = 263.14 : x
  2. Step 2: Convert to fraction form
    436.98/654.62 = 263.14/x
  3. Step 3: Cross multiply
    436.98x = 654.62 × 263.14
  4. Step 4: Simplify right side
    436.98x = 172,253.75
  5. Step 5: Solve for x
    x = 172,253.75/436.98
  6. Step 6: Final answer
    x = 394.19

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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.