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Finding the Fourth Proportional to 335.57, 463.11 and 186.21

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Solution

The fourth proportional to 335.57, 463.11 and 186.21 is: 256.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    335.57 : 463.11 = 186.21 : x
  2. Step 2: Convert to fraction form
    335.57/463.11 = 186.21/x
  3. Step 3: Cross multiply
    335.57x = 463.11 × 186.21
  4. Step 4: Simplify right side
    335.57x = 86,235.71
  5. Step 5: Solve for x
    x = 86,235.71/335.57
  6. Step 6: Final answer
    x = 256.99

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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.