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Finding the Fourth Proportional to 535.38, 738.09 and 358.35

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Solution

The fourth proportional to 535.38, 738.09 and 358.35 is: 494.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    535.38 : 738.09 = 358.35 : x
  2. Step 2: Convert to fraction form
    535.38/738.09 = 358.35/x
  3. Step 3: Cross multiply
    535.38x = 738.09 × 358.35
  4. Step 4: Simplify right side
    535.38x = 264,490.86
  5. Step 5: Solve for x
    x = 264,490.86/535.38
  6. Step 6: Final answer
    x = 494.03

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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.