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Finding the Fourth Proportional to 548,365.62, 821,987.64 and 211,274.27

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Solution

The fourth proportional to 548,365.62, 821,987.64 and 211,274.27 is: 316,695.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    548,365.62 : 821,987.64 = 211,274.27 : x
  2. Step 2: Convert to fraction form
    548,365.62/821,987.64 = 211,274.27/x
  3. Step 3: Cross multiply
    548,365.62x = 821,987.64 × 211,274.27
  4. Step 4: Simplify right side
    548,365.62x = 173,664,834,480.09
  5. Step 5: Solve for x
    x = 173,664,834,480.09/548,365.62
  6. Step 6: Final answer
    x = 316,695.34

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.