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Finding the Fourth Proportional to 505.29, 758.16 and 343.24

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Solution

The fourth proportional to 505.29, 758.16 and 343.24 is: 515.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    505.29 : 758.16 = 343.24 : x
  2. Step 2: Convert to fraction form
    505.29/758.16 = 343.24/x
  3. Step 3: Cross multiply
    505.29x = 758.16 × 343.24
  4. Step 4: Simplify right side
    505.29x = 260,230.84
  5. Step 5: Solve for x
    x = 260,230.84/505.29
  6. Step 6: Final answer
    x = 515.01

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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.