Home / 389,584.40-583,939.20-164,906.60

Finding the Fourth Proportional to 389,584.40, 583,939.20 and 164,906.60

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Solution

The fourth proportional to 389,584.40, 583,939.20 and 164,906.60 is: 247,174.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    389,584.40 : 583,939.20 = 164,906.60 : x
  2. Step 2: Convert to fraction form
    389,584.40/583,939.20 = 164,906.60/x
  3. Step 3: Cross multiply
    389,584.40x = 583,939.20 × 164,906.60
  4. Step 4: Simplify right side
    389,584.40x = 96,295,428,078.72
  5. Step 5: Solve for x
    x = 96,295,428,078.72/389,584.40
  6. Step 6: Final answer
    x = 247,174.75

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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.