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Finding the Fourth Proportional to 571,620.96, 857,542.61 and 172,241.96

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Solution

The fourth proportional to 571,620.96, 857,542.61 and 172,241.96 is: 258,396.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    571,620.96 : 857,542.61 = 172,241.96 : x
  2. Step 2: Convert to fraction form
    571,620.96/857,542.61 = 172,241.96/x
  3. Step 3: Cross multiply
    571,620.96x = 857,542.61 × 172,241.96
  4. Step 4: Simplify right side
    571,620.96x = 147,704,816,072.81
  5. Step 5: Solve for x
    x = 147,704,816,072.81/571,620.96
  6. Step 6: Final answer
    x = 258,396.43

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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.