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Finding the Fourth Proportional to 535.08, 738.42 and 328.20

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Solution

The fourth proportional to 535.08, 738.42 and 328.20 is: 452.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    535.08 : 738.42 = 328.20 : x
  2. Step 2: Convert to fraction form
    535.08/738.42 = 328.20/x
  3. Step 3: Cross multiply
    535.08x = 738.42 × 328.20
  4. Step 4: Simplify right side
    535.08x = 242,349.44
  5. Step 5: Solve for x
    x = 242,349.44/535.08
  6. Step 6: Final answer
    x = 452.92

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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.