Home / 264,826.40-397,249.20-77,856.80

Finding the Fourth Proportional to 264,826.40, 397,249.20 and 77,856.80

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Solution

The fourth proportional to 264,826.40, 397,249.20 and 77,856.80 is: 116,788.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    264,826.40 : 397,249.20 = 77,856.80 : x
  2. Step 2: Convert to fraction form
    264,826.40/397,249.20 = 77,856.80/x
  3. Step 3: Cross multiply
    264,826.40x = 397,249.20 × 77,856.80
  4. Step 4: Simplify right side
    264,826.40x = 30,928,551,514.56
  5. Step 5: Solve for x
    x = 30,928,551,514.56/264,826.40
  6. Step 6: Final answer
    x = 116,788.02

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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.