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Finding the Fourth Proportional to 550,986.40, 826,333.80 and 171,906.40

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Solution

The fourth proportional to 550,986.40, 826,333.80 and 171,906.40 is: 257,814.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    550,986.40 : 826,333.80 = 171,906.40 : x
  2. Step 2: Convert to fraction form
    550,986.40/826,333.80 = 171,906.40/x
  3. Step 3: Cross multiply
    550,986.40x = 826,333.80 × 171,906.40
  4. Step 4: Simplify right side
    550,986.40x = 142,052,068,756.32
  5. Step 5: Solve for x
    x = 142,052,068,756.32/550,986.40
  6. Step 6: Final answer
    x = 257,814.11

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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.