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Finding the Fourth Proportional to 342.18, 471.57 and 335.94

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Solution

The fourth proportional to 342.18, 471.57 and 335.94 is: 462.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    342.18 : 471.57 = 335.94 : x
  2. Step 2: Convert to fraction form
    342.18/471.57 = 335.94/x
  3. Step 3: Cross multiply
    342.18x = 471.57 × 335.94
  4. Step 4: Simplify right side
    342.18x = 158,419.23
  5. Step 5: Solve for x
    x = 158,419.23/342.18
  6. Step 6: Final answer
    x = 462.97

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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.