Home / 252,823.04-379,441.92-128,199.68

Finding the Fourth Proportional to 252,823.04, 379,441.92 and 128,199.68

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Solution

The fourth proportional to 252,823.04, 379,441.92 and 128,199.68 is: 192,404.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    252,823.04 : 379,441.92 = 128,199.68 : x
  2. Step 2: Convert to fraction form
    252,823.04/379,441.92 = 128,199.68/x
  3. Step 3: Cross multiply
    252,823.04x = 379,441.92 × 128,199.68
  4. Step 4: Simplify right side
    252,823.04x = 48,644,332,722.59
  5. Step 5: Solve for x
    x = 48,644,332,722.59/252,823.04
  6. Step 6: Final answer
    x = 192,404.67

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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.