Home / 289,917.03-434,768.92-100,328.73

Finding the Fourth Proportional to 289,917.03, 434,768.92 and 100,328.73

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Solution

The fourth proportional to 289,917.03, 434,768.92 and 100,328.73 is: 150,456.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    289,917.03 : 434,768.92 = 100,328.73 : x
  2. Step 2: Convert to fraction form
    289,917.03/434,768.92 = 100,328.73/x
  3. Step 3: Cross multiply
    289,917.03x = 434,768.92 × 100,328.73
  4. Step 4: Simplify right side
    289,917.03x = 43,619,813,587.07
  5. Step 5: Solve for x
    x = 43,619,813,587.07/289,917.03
  6. Step 6: Final answer
    x = 150,456.20

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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.