Home / 395,478.40-593,282.24-129,161.60

Finding the Fourth Proportional to 395,478.40, 593,282.24 and 129,161.60

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Solution

The fourth proportional to 395,478.40, 593,282.24 and 129,161.60 is: 193,763.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    395,478.40 : 593,282.24 = 129,161.60 : x
  2. Step 2: Convert to fraction form
    395,478.40/593,282.24 = 129,161.60/x
  3. Step 3: Cross multiply
    395,478.40x = 593,282.24 × 129,161.60
  4. Step 4: Simplify right side
    395,478.40x = 76,629,283,369.98
  5. Step 5: Solve for x
    x = 76,629,283,369.98/395,478.40
  6. Step 6: Final answer
    x = 193,763.51

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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.