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Finding the Fourth Proportional to 333.71, 460.28 and 215.72

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Solution

The fourth proportional to 333.71, 460.28 and 215.72 is: 297.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    333.71 : 460.28 = 215.72 : x
  2. Step 2: Convert to fraction form
    333.71/460.28 = 215.72/x
  3. Step 3: Cross multiply
    333.71x = 460.28 × 215.72
  4. Step 4: Simplify right side
    333.71x = 99,291.60
  5. Step 5: Solve for x
    x = 99,291.60/333.71
  6. Step 6: Final answer
    x = 297.54

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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.