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Finding the Fourth Proportional to 535.35, 738.76 and 299.32

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Solution

The fourth proportional to 535.35, 738.76 and 299.32 is: 413.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    535.35 : 738.76 = 299.32 : x
  2. Step 2: Convert to fraction form
    535.35/738.76 = 299.32/x
  3. Step 3: Cross multiply
    535.35x = 738.76 × 299.32
  4. Step 4: Simplify right side
    535.35x = 221,125.64
  5. Step 5: Solve for x
    x = 221,125.64/535.35
  6. Step 6: Final answer
    x = 413.05

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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.