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Finding the Fourth Proportional to 436.43, 654.49 and 176.36

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Solution

The fourth proportional to 436.43, 654.49 and 176.36 is: 264.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    436.43 : 654.49 = 176.36 : x
  2. Step 2: Convert to fraction form
    436.43/654.49 = 176.36/x
  3. Step 3: Cross multiply
    436.43x = 654.49 × 176.36
  4. Step 4: Simplify right side
    436.43x = 115,426.61
  5. Step 5: Solve for x
    x = 115,426.61/436.43
  6. Step 6: Final answer
    x = 264.48

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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.