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Finding the Fourth Proportional to 535.23, 738.59 and 299.16

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Solution

The fourth proportional to 535.23, 738.59 and 299.16 is: 412.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    535.23 : 738.59 = 299.16 : x
  2. Step 2: Convert to fraction form
    535.23/738.59 = 299.16/x
  3. Step 3: Cross multiply
    535.23x = 738.59 × 299.16
  4. Step 4: Simplify right side
    535.23x = 220,955.09
  5. Step 5: Solve for x
    x = 220,955.09/535.23
  6. Step 6: Final answer
    x = 412.82

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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.