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Finding the Fourth Proportional to 535.38, 738.99 and 360.72

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Solution

The fourth proportional to 535.38, 738.99 and 360.72 is: 497.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    535.38 : 738.99 = 360.72 : x
  2. Step 2: Convert to fraction form
    535.38/738.99 = 360.72/x
  3. Step 3: Cross multiply
    535.38x = 738.99 × 360.72
  4. Step 4: Simplify right side
    535.38x = 266,568.47
  5. Step 5: Solve for x
    x = 266,568.47/535.38
  6. Step 6: Final answer
    x = 497.91

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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.