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Finding the Fourth Proportional to 401,863.56, 554,571.49 and 227,430.60

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Solution

The fourth proportional to 401,863.56, 554,571.49 and 227,430.60 is: 313,854.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    401,863.56 : 554,571.49 = 227,430.60 : x
  2. Step 2: Convert to fraction form
    401,863.56/554,571.49 = 227,430.60/x
  3. Step 3: Cross multiply
    401,863.56x = 554,571.49 × 227,430.60
  4. Step 4: Simplify right side
    401,863.56x = 126,126,523,940.74
  5. Step 5: Solve for x
    x = 126,126,523,940.74/401,863.56
  6. Step 6: Final answer
    x = 313,854.10

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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.