Home / 278,298.22-417,464.70-78,633.94

Finding the Fourth Proportional to 278,298.22, 417,464.70 and 78,633.94

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Solution

The fourth proportional to 278,298.22, 417,464.70 and 78,633.94 is: 117,955.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    278,298.22 : 417,464.70 = 78,633.94 : x
  2. Step 2: Convert to fraction form
    278,298.22/417,464.70 = 78,633.94/x
  3. Step 3: Cross multiply
    278,298.22x = 417,464.70 × 78,633.94
  4. Step 4: Simplify right side
    278,298.22x = 32,826,894,171.92
  5. Step 5: Solve for x
    x = 32,826,894,171.92/278,298.22
  6. Step 6: Final answer
    x = 117,955.82

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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.