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Finding the Fourth Proportional to 535.53, 803.79 and 330.50

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Solution

The fourth proportional to 535.53, 803.79 and 330.50 is: 496.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    535.53 : 803.79 = 330.50 : x
  2. Step 2: Convert to fraction form
    535.53/803.79 = 330.50/x
  3. Step 3: Cross multiply
    535.53x = 803.79 × 330.50
  4. Step 4: Simplify right side
    535.53x = 265,652.60
  5. Step 5: Solve for x
    x = 265,652.60/535.53
  6. Step 6: Final answer
    x = 496.06

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.