Home / 439,440.38-659,212.51-139,815.91

Finding the Fourth Proportional to 439,440.38, 659,212.51 and 139,815.91

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Solution

The fourth proportional to 439,440.38, 659,212.51 and 139,815.91 is: 209,740.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    439,440.38 : 659,212.51 = 139,815.91 : x
  2. Step 2: Convert to fraction form
    439,440.38/659,212.51 = 139,815.91/x
  3. Step 3: Cross multiply
    439,440.38x = 659,212.51 × 139,815.91
  4. Step 4: Simplify right side
    439,440.38x = 92,168,396,969.03
  5. Step 5: Solve for x
    x = 92,168,396,969.03/439,440.38
  6. Step 6: Final answer
    x = 209,740.39

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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.