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Finding the Fourth Proportional to 401,479.93, 554,049.75 and 220,180.87

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Solution

The fourth proportional to 401,479.93, 554,049.75 and 220,180.87 is: 303,853.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    401,479.93 : 554,049.75 = 220,180.87 : x
  2. Step 2: Convert to fraction form
    401,479.93/554,049.75 = 220,180.87/x
  3. Step 3: Cross multiply
    401,479.93x = 554,049.75 × 220,180.87
  4. Step 4: Simplify right side
    401,479.93x = 121,991,155,978.28
  5. Step 5: Solve for x
    x = 121,991,155,978.28/401,479.93
  6. Step 6: Final answer
    x = 303,853.68

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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.