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Finding the Fourth Proportional to 536, 803.86 and 170.70

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Solution

The fourth proportional to 536, 803.86 and 170.70 is: 256.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    536 : 803.86 = 170.70 : x
  2. Step 2: Convert to fraction form
    536/803.86 = 170.70/x
  3. Step 3: Cross multiply
    536x = 803.86 × 170.70
  4. Step 4: Simplify right side
    536x = 137,218.90
  5. Step 5: Solve for x
    x = 137,218.90/536
  6. Step 6: Final answer
    x = 256.01

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