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Finding the Fourth Proportional to 333.99, 460.55 and 287.52

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Solution

The fourth proportional to 333.99, 460.55 and 287.52 is: 396.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    333.99 : 460.55 = 287.52 : x
  2. Step 2: Convert to fraction form
    333.99/460.55 = 287.52/x
  3. Step 3: Cross multiply
    333.99x = 460.55 × 287.52
  4. Step 4: Simplify right side
    333.99x = 132,416.33
  5. Step 5: Solve for x
    x = 132,416.33/333.99
  6. Step 6: Final answer
    x = 396.47

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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.