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Finding the Fourth Proportional to 401,791.36, 554,470.34 and 220,506.22

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Solution

The fourth proportional to 401,791.36, 554,470.34 and 220,506.22 is: 304,297.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    401,791.36 : 554,470.34 = 220,506.22 : x
  2. Step 2: Convert to fraction form
    401,791.36/554,470.34 = 220,506.22/x
  3. Step 3: Cross multiply
    401,791.36x = 554,470.34 × 220,506.22
  4. Step 4: Simplify right side
    401,791.36x = 122,264,160,545.69
  5. Step 5: Solve for x
    x = 122,264,160,545.69/401,791.36
  6. Step 6: Final answer
    x = 304,297.63

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1.5x scale

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.