Home / 278,559.08-417,921.96-110,103.20

Finding the Fourth Proportional to 278,559.08, 417,921.96 and 110,103.20

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Solution

The fourth proportional to 278,559.08, 417,921.96 and 110,103.20 is: 165,187.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    278,559.08 : 417,921.96 = 110,103.20 : x
  2. Step 2: Convert to fraction form
    278,559.08/417,921.96 = 110,103.20/x
  3. Step 3: Cross multiply
    278,559.08x = 417,921.96 × 110,103.20
  4. Step 4: Simplify right side
    278,559.08x = 46,014,545,146.27
  5. Step 5: Solve for x
    x = 46,014,545,146.27/278,559.08
  6. Step 6: Final answer
    x = 165,187.74

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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.