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Finding the Fourth Proportional to 334.82, 462.16 and 210.72

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Solution

The fourth proportional to 334.82, 462.16 and 210.72 is: 290.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    334.82 : 462.16 = 210.72 : x
  2. Step 2: Convert to fraction form
    334.82/462.16 = 210.72/x
  3. Step 3: Cross multiply
    334.82x = 462.16 × 210.72
  4. Step 4: Simplify right side
    334.82x = 97,386.36
  5. Step 5: Solve for x
    x = 97,386.36/334.82
  6. Step 6: Final answer
    x = 290.86

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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.