Home / 278,296.22-417,461.70-78,631.94

Finding the Fourth Proportional to 278,296.22, 417,461.70 and 78,631.94

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Solution

The fourth proportional to 278,296.22, 417,461.70 and 78,631.94 is: 117,952.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    278,296.22 : 417,461.70 = 78,631.94 : x
  2. Step 2: Convert to fraction form
    278,296.22/417,461.70 = 78,631.94/x
  3. Step 3: Cross multiply
    278,296.22x = 417,461.70 × 78,631.94
  4. Step 4: Simplify right side
    278,296.22x = 32,825,823,346.70
  5. Step 5: Solve for x
    x = 32,825,823,346.70/278,296.22
  6. Step 6: Final answer
    x = 117,952.82

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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.