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Finding the Fourth Proportional to 550,989.79, 826,163.55 and 213,636.34

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Solution

The fourth proportional to 550,989.79, 826,163.55 and 213,636.34 is: 320,330.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    550,989.79 : 826,163.55 = 213,636.34 : x
  2. Step 2: Convert to fraction form
    550,989.79/826,163.55 = 213,636.34/x
  3. Step 3: Cross multiply
    550,989.79x = 826,163.55 × 213,636.34
  4. Step 4: Simplify right side
    550,989.79x = 176,498,557,063.41
  5. Step 5: Solve for x
    x = 176,498,557,063.41/550,989.79
  6. Step 6: Final answer
    x = 320,330.00

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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.