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Finding the Fourth Proportional to 499.56, 749.19 and 346.47

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Solution

The fourth proportional to 499.56, 749.19 and 346.47 is: 519.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    499.56 : 749.19 = 346.47 : x
  2. Step 2: Convert to fraction form
    499.56/749.19 = 346.47/x
  3. Step 3: Cross multiply
    499.56x = 749.19 × 346.47
  4. Step 4: Simplify right side
    499.56x = 259,571.86
  5. Step 5: Solve for x
    x = 259,571.86/499.56
  6. Step 6: Final answer
    x = 519.60

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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.