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Finding the Fourth Proportional to 335.07, 464.54 and 316.62

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Solution

The fourth proportional to 335.07, 464.54 and 316.62 is: 438.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    335.07 : 464.54 = 316.62 : x
  2. Step 2: Convert to fraction form
    335.07/464.54 = 316.62/x
  3. Step 3: Cross multiply
    335.07x = 464.54 × 316.62
  4. Step 4: Simplify right side
    335.07x = 147,081.07
  5. Step 5: Solve for x
    x = 147,081.07/335.07
  6. Step 6: Final answer
    x = 438.96

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Why These Related Problems?

These problems maintain the same ratio (1.39) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.