Home / 326,856.20-450,018.77-278,917.16

Finding the Fourth Proportional to 326,856.20, 450,018.77 and 278,917.16

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Solution

The fourth proportional to 326,856.20, 450,018.77 and 278,917.16 is: 384,015.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    326,856.20 : 450,018.77 = 278,917.16 : x
  2. Step 2: Convert to fraction form
    326,856.20/450,018.77 = 278,917.16/x
  3. Step 3: Cross multiply
    326,856.20x = 450,018.77 × 278,917.16
  4. Step 4: Simplify right side
    326,856.20x = 125,517,953,630.41
  5. Step 5: Solve for x
    x = 125,517,953,630.41/326,856.20
  6. Step 6: Final answer
    x = 384,015.83

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.