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Finding the Fourth Proportional to 335.19, 462.51 and 187.82

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Solution

The fourth proportional to 335.19, 462.51 and 187.82 is: 259.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    335.19 : 462.51 = 187.82 : x
  2. Step 2: Convert to fraction form
    335.19/462.51 = 187.82/x
  3. Step 3: Cross multiply
    335.19x = 462.51 × 187.82
  4. Step 4: Simplify right side
    335.19x = 86,868.63
  5. Step 5: Solve for x
    x = 86,868.63/335.19
  6. Step 6: Final answer
    x = 259.16

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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.