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Finding the Fourth Proportional to 908.00, 1,253.29 and 535.19

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Solution

The fourth proportional to 908.00, 1,253.29 and 535.19 is: 738.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    908.00 : 1,253.29 = 535.19 : x
  2. Step 2: Convert to fraction form
    908.00/1,253.29 = 535.19/x
  3. Step 3: Cross multiply
    908.00x = 1,253.29 × 535.19
  4. Step 4: Simplify right side
    908.00x = 670,748.28
  5. Step 5: Solve for x
    x = 670,748.28/908.00
  6. Step 6: Final answer
    x = 738.71

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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.