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Finding the Fourth Proportional to 334.87, 502.34 and 118.40

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Solution

The fourth proportional to 334.87, 502.34 and 118.40 is: 177.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    334.87 : 502.34 = 118.40 : x
  2. Step 2: Convert to fraction form
    334.87/502.34 = 118.40/x
  3. Step 3: Cross multiply
    334.87x = 502.34 × 118.40
  4. Step 4: Simplify right side
    334.87x = 59,477.06
  5. Step 5: Solve for x
    x = 59,477.06/334.87
  6. Step 6: Final answer
    x = 177.61

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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.