Home / 401,738.94-554,395.32-220,452.30

Finding the Fourth Proportional to 401,738.94, 554,395.32 and 220,452.30

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Solution

The fourth proportional to 401,738.94, 554,395.32 and 220,452.30 is: 304,221.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    401,738.94 : 554,395.32 = 220,452.30 : x
  2. Step 2: Convert to fraction form
    401,738.94/554,395.32 = 220,452.30/x
  3. Step 3: Cross multiply
    401,738.94x = 554,395.32 × 220,452.30
  4. Step 4: Simplify right side
    401,738.94x = 122,217,723,403.24
  5. Step 5: Solve for x
    x = 122,217,723,403.24/401,738.94
  6. Step 6: Final answer
    x = 304,221.75

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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.