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Finding the Fourth Proportional to 496.53, 744.66 and 313.61

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Solution

The fourth proportional to 496.53, 744.66 and 313.61 is: 470.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    496.53 : 744.66 = 313.61 : x
  2. Step 2: Convert to fraction form
    496.53/744.66 = 313.61/x
  3. Step 3: Cross multiply
    496.53x = 744.66 × 313.61
  4. Step 4: Simplify right side
    496.53x = 233,529.10
  5. Step 5: Solve for x
    x = 233,529.10/496.53
  6. Step 6: Final answer
    x = 470.32

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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.