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Finding the Fourth Proportional to 333.43, 459.91 and 202.51

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Solution

The fourth proportional to 333.43, 459.91 and 202.51 is: 279.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    333.43 : 459.91 = 202.51 : x
  2. Step 2: Convert to fraction form
    333.43/459.91 = 202.51/x
  3. Step 3: Cross multiply
    333.43x = 459.91 × 202.51
  4. Step 4: Simplify right side
    333.43x = 93,137.20
  5. Step 5: Solve for x
    x = 93,137.20/333.43
  6. Step 6: Final answer
    x = 279.33

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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.