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Finding the Fourth Proportional to 908.14, 1,253.14 and 535.24

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Solution

The fourth proportional to 908.14, 1,253.14 and 535.24 is: 738.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    908.14 : 1,253.14 = 535.24 : x
  2. Step 2: Convert to fraction form
    908.14/1,253.14 = 535.24/x
  3. Step 3: Cross multiply
    908.14x = 1,253.14 × 535.24
  4. Step 4: Simplify right side
    908.14x = 670,730.65
  5. Step 5: Solve for x
    x = 670,730.65/908.14
  6. Step 6: Final answer
    x = 738.58

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Double scale
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1.5x scale

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.