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Finding the Fourth Proportional to 535.08, 738.35 and 298.98

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Solution

The fourth proportional to 535.08, 738.35 and 298.98 is: 412.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    535.08 : 738.35 = 298.98 : x
  2. Step 2: Convert to fraction form
    535.08/738.35 = 298.98/x
  3. Step 3: Cross multiply
    535.08x = 738.35 × 298.98
  4. Step 4: Simplify right side
    535.08x = 220,752.63
  5. Step 5: Solve for x
    x = 220,752.63/535.08
  6. Step 6: Final answer
    x = 412.56

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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.