Home / 278,568.24-417,848.16-68,206.20

Finding the Fourth Proportional to 278,568.24, 417,848.16 and 68,206.20

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Solution

The fourth proportional to 278,568.24, 417,848.16 and 68,206.20 is: 102,308.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    278,568.24 : 417,848.16 = 68,206.20 : x
  2. Step 2: Convert to fraction form
    278,568.24/417,848.16 = 68,206.20/x
  3. Step 3: Cross multiply
    278,568.24x = 417,848.16 × 68,206.20
  4. Step 4: Simplify right side
    278,568.24x = 28,499,835,170.59
  5. Step 5: Solve for x
    x = 28,499,835,170.59/278,568.24
  6. Step 6: Final answer
    x = 102,308.27

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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.