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Finding the Fourth Proportional to 571,693.60, 857,263.44 and 172,259.92

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Solution

The fourth proportional to 571,693.60, 857,263.44 and 172,259.92 is: 258,306.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    571,693.60 : 857,263.44 = 172,259.92 : x
  2. Step 2: Convert to fraction form
    571,693.60/857,263.44 = 172,259.92/x
  3. Step 3: Cross multiply
    571,693.60x = 857,263.44 × 172,259.92
  4. Step 4: Simplify right side
    571,693.60x = 147,672,131,593.33
  5. Step 5: Solve for x
    x = 147,672,131,593.33/571,693.60
  6. Step 6: Final answer
    x = 258,306.43

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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.