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Finding the Fourth Proportional to 335.65, 463.13 and 188.28

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Solution

The fourth proportional to 335.65, 463.13 and 188.28 is: 259.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    335.65 : 463.13 = 188.28 : x
  2. Step 2: Convert to fraction form
    335.65/463.13 = 188.28/x
  3. Step 3: Cross multiply
    335.65x = 463.13 × 188.28
  4. Step 4: Simplify right side
    335.65x = 87,198.12
  5. Step 5: Solve for x
    x = 87,198.12/335.65
  6. Step 6: Final answer
    x = 259.79

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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.