Home / 359,983.20-539,974.80-192,021.60

Finding the Fourth Proportional to 359,983.20, 539,974.80 and 192,021.60

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Solution

The fourth proportional to 359,983.20, 539,974.80 and 192,021.60 is: 288,032.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    359,983.20 : 539,974.80 = 192,021.60 : x
  2. Step 2: Convert to fraction form
    359,983.20/539,974.80 = 192,021.60/x
  3. Step 3: Cross multiply
    359,983.20x = 539,974.80 × 192,021.60
  4. Step 4: Simplify right side
    359,983.20x = 103,686,825,055.68
  5. Step 5: Solve for x
    x = 103,686,825,055.68/359,983.20
  6. Step 6: Final answer
    x = 288,032.40

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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.