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Finding the Fourth Proportional to 399,919.48, 599,758.02 and 210,277.64

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Solution

The fourth proportional to 399,919.48, 599,758.02 and 210,277.64 is: 315,352.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    399,919.48 : 599,758.02 = 210,277.64 : x
  2. Step 2: Convert to fraction form
    399,919.48/599,758.02 = 210,277.64/x
  3. Step 3: Cross multiply
    399,919.48x = 599,758.02 × 210,277.64
  4. Step 4: Simplify right side
    399,919.48x = 126,115,701,016.67
  5. Step 5: Solve for x
    x = 126,115,701,016.67/399,919.48
  6. Step 6: Final answer
    x = 315,352.73

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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.