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Finding the Fourth Proportional to 335.12, 502.77 and 118.71

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Solution

The fourth proportional to 335.12, 502.77 and 118.71 is: 178.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    335.12 : 502.77 = 118.71 : x
  2. Step 2: Convert to fraction form
    335.12/502.77 = 118.71/x
  3. Step 3: Cross multiply
    335.12x = 502.77 × 118.71
  4. Step 4: Simplify right side
    335.12x = 59,683.83
  5. Step 5: Solve for x
    x = 59,683.83/335.12
  6. Step 6: Final answer
    x = 178.10

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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.