Home / 278,813.14-417,984.60-120,922.67

Finding the Fourth Proportional to 278,813.14, 417,984.60 and 120,922.67

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Solution

The fourth proportional to 278,813.14, 417,984.60 and 120,922.67 is: 181,282.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    278,813.14 : 417,984.60 = 120,922.67 : x
  2. Step 2: Convert to fraction form
    278,813.14/417,984.60 = 120,922.67/x
  3. Step 3: Cross multiply
    278,813.14x = 417,984.60 × 120,922.67
  4. Step 4: Simplify right side
    278,813.14x = 50,543,815,349.30
  5. Step 5: Solve for x
    x = 50,543,815,349.30/278,813.14
  6. Step 6: Final answer
    x = 181,282.04

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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.