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Finding the Fourth Proportional to 571,602.97, 857,404.00 and 172,243.74

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Solution

The fourth proportional to 571,602.97, 857,404.00 and 172,243.74 is: 258,365.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    571,602.97 : 857,404.00 = 172,243.74 : x
  2. Step 2: Convert to fraction form
    571,602.97/857,404.00 = 172,243.74/x
  3. Step 3: Cross multiply
    571,602.97x = 857,404.00 × 172,243.74
  4. Step 4: Simplify right side
    571,602.97x = 147,682,470,789.74
  5. Step 5: Solve for x
    x = 147,682,470,789.74/571,602.97
  6. Step 6: Final answer
    x = 258,365.47

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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.