Home / 278,215.92-417,077.64-120,358.26

Finding the Fourth Proportional to 278,215.92, 417,077.64 and 120,358.26

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Solution

The fourth proportional to 278,215.92, 417,077.64 and 120,358.26 is: 180,430.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    278,215.92 : 417,077.64 = 120,358.26 : x
  2. Step 2: Convert to fraction form
    278,215.92/417,077.64 = 120,358.26/x
  3. Step 3: Cross multiply
    278,215.92x = 417,077.64 × 120,358.26
  4. Step 4: Simplify right side
    278,215.92x = 50,198,739,035.31
  5. Step 5: Solve for x
    x = 50,198,739,035.31/278,215.92
  6. Step 6: Final answer
    x = 180,430.86

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1.5x scale

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.