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Finding the Fourth Proportional to 333.80, 499.79 and 265.16

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Solution

The fourth proportional to 333.80, 499.79 and 265.16 is: 397.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    333.80 : 499.79 = 265.16 : x
  2. Step 2: Convert to fraction form
    333.80/499.79 = 265.16/x
  3. Step 3: Cross multiply
    333.80x = 499.79 × 265.16
  4. Step 4: Simplify right side
    333.80x = 132,522.48
  5. Step 5: Solve for x
    x = 132,522.48/333.80
  6. Step 6: Final answer
    x = 397.01

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.