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Finding the Fourth Proportional to 535.56, 803.88 and 371.04

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Solution

The fourth proportional to 535.56, 803.88 and 371.04 is: 556.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    535.56 : 803.88 = 371.04 : x
  2. Step 2: Convert to fraction form
    535.56/803.88 = 371.04/x
  3. Step 3: Cross multiply
    535.56x = 803.88 × 371.04
  4. Step 4: Simplify right side
    535.56x = 298,271.64
  5. Step 5: Solve for x
    x = 298,271.64/535.56
  6. Step 6: Final answer
    x = 556.93

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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.