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Finding the Fourth Proportional to 398,614.37, 550,112.34 and 228,874.01

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Solution

The fourth proportional to 398,614.37, 550,112.34 and 228,874.01 is: 315,860.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    398,614.37 : 550,112.34 = 228,874.01 : x
  2. Step 2: Convert to fraction form
    398,614.37/550,112.34 = 228,874.01/x
  3. Step 3: Cross multiply
    398,614.37x = 550,112.34 × 228,874.01
  4. Step 4: Simplify right side
    398,614.37x = 125,906,417,206.28
  5. Step 5: Solve for x
    x = 125,906,417,206.28/398,614.37
  6. Step 6: Final answer
    x = 315,860.21

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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.