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Finding the Fourth Proportional to 333.75, 460.80 and 298.72

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Solution

The fourth proportional to 333.75, 460.80 and 298.72 is: 412.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    333.75 : 460.80 = 298.72 : x
  2. Step 2: Convert to fraction form
    333.75/460.80 = 298.72/x
  3. Step 3: Cross multiply
    333.75x = 460.80 × 298.72
  4. Step 4: Simplify right side
    333.75x = 137,649.35
  5. Step 5: Solve for x
    x = 137,649.35/333.75
  6. Step 6: Final answer
    x = 412.43

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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.