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Finding the Fourth Proportional to 289,077.54, 398,661.98 and 248,227.80

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Solution

The fourth proportional to 289,077.54, 398,661.98 and 248,227.80 is: 342,326.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    289,077.54 : 398,661.98 = 248,227.80 : x
  2. Step 2: Convert to fraction form
    289,077.54/398,661.98 = 248,227.80/x
  3. Step 3: Cross multiply
    289,077.54x = 398,661.98 × 248,227.80
  4. Step 4: Simplify right side
    289,077.54x = 98,958,986,239.04
  5. Step 5: Solve for x
    x = 98,958,986,239.04/289,077.54
  6. Step 6: Final answer
    x = 342,326.79

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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.