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Finding the Fourth Proportional to 496.23, 744.23 and 320.00

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Solution

The fourth proportional to 496.23, 744.23 and 320.00 is: 479.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    496.23 : 744.23 = 320.00 : x
  2. Step 2: Convert to fraction form
    496.23/744.23 = 320.00/x
  3. Step 3: Cross multiply
    496.23x = 744.23 × 320.00
  4. Step 4: Simplify right side
    496.23x = 238,148.28
  5. Step 5: Solve for x
    x = 238,148.28/496.23
  6. Step 6: Final answer
    x = 479.92

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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.