Home / 260,748.87-391,202.06-109,019.67

Finding the Fourth Proportional to 260,748.87, 391,202.06 and 109,019.67

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Solution

The fourth proportional to 260,748.87, 391,202.06 and 109,019.67 is: 163,562.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    260,748.87 : 391,202.06 = 109,019.67 : x
  2. Step 2: Convert to fraction form
    260,748.87/391,202.06 = 109,019.67/x
  3. Step 3: Cross multiply
    260,748.87x = 391,202.06 × 109,019.67
  4. Step 4: Simplify right side
    260,748.87x = 42,648,718,939.42
  5. Step 5: Solve for x
    x = 42,648,718,939.42/260,748.87
  6. Step 6: Final answer
    x = 163,562.43

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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.