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Finding the Fourth Proportional to 394,998.88, 592,559.88 and 170,422.60

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Solution

The fourth proportional to 394,998.88, 592,559.88 and 170,422.60 is: 255,660.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    394,998.88 : 592,559.88 = 170,422.60 : x
  2. Step 2: Convert to fraction form
    394,998.88/592,559.88 = 170,422.60/x
  3. Step 3: Cross multiply
    394,998.88x = 592,559.88 × 170,422.60
  4. Step 4: Simplify right side
    394,998.88x = 100,985,595,405.29
  5. Step 5: Solve for x
    x = 100,985,595,405.29/394,998.88
  6. Step 6: Final answer
    x = 255,660.46

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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.