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Finding the Fourth Proportional to 401,772.49, 554,452.90 and 220,501.27

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Solution

The fourth proportional to 401,772.49, 554,452.90 and 220,501.27 is: 304,295.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    401,772.49 : 554,452.90 = 220,501.27 : x
  2. Step 2: Convert to fraction form
    401,772.49/554,452.90 = 220,501.27/x
  3. Step 3: Cross multiply
    401,772.49x = 554,452.90 × 220,501.27
  4. Step 4: Simplify right side
    401,772.49x = 122,257,568,747.00
  5. Step 5: Solve for x
    x = 122,257,568,747.00/401,772.49
  6. Step 6: Final answer
    x = 304,295.52

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.