Home / 439,225.20-659,010.60-172,940.40

Finding the Fourth Proportional to 439,225.20, 659,010.60 and 172,940.40

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Solution

The fourth proportional to 439,225.20, 659,010.60 and 172,940.40 is: 259,478.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    439,225.20 : 659,010.60 = 172,940.40 : x
  2. Step 2: Convert to fraction form
    439,225.20/659,010.60 = 172,940.40/x
  3. Step 3: Cross multiply
    439,225.20x = 659,010.60 × 172,940.40
  4. Step 4: Simplify right side
    439,225.20x = 113,969,556,768.24
  5. Step 5: Solve for x
    x = 113,969,556,768.24/439,225.20
  6. Step 6: Final answer
    x = 259,478.64

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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.