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Finding the Fourth Proportional to 548,362.62, 821,983.14 and 211,271.27

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Solution

The fourth proportional to 548,362.62, 821,983.14 and 211,271.27 is: 316,690.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    548,362.62 : 821,983.14 = 211,271.27 : x
  2. Step 2: Convert to fraction form
    548,362.62/821,983.14 = 211,271.27/x
  3. Step 3: Cross multiply
    548,362.62x = 821,983.14 × 211,271.27
  4. Step 4: Simplify right side
    548,362.62x = 173,661,417,796.47
  5. Step 5: Solve for x
    x = 173,661,417,796.47/548,362.62
  6. Step 6: Final answer
    x = 316,690.84

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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.