Home / 278,733.30-418,099.96-120,958.26

Finding the Fourth Proportional to 278,733.30, 418,099.96 and 120,958.26

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Solution

The fourth proportional to 278,733.30, 418,099.96 and 120,958.26 is: 181,437.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    278,733.30 : 418,099.96 = 120,958.26 : x
  2. Step 2: Convert to fraction form
    278,733.30/418,099.96 = 120,958.26/x
  3. Step 3: Cross multiply
    278,733.30x = 418,099.96 × 120,958.26
  4. Step 4: Simplify right side
    278,733.30x = 50,572,643,667.67
  5. Step 5: Solve for x
    x = 50,572,643,667.67/278,733.30
  6. Step 6: Final answer
    x = 181,437.39

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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.