Home / 245,998.20-369,007-68,520.72

Finding the Fourth Proportional to 245,998.20, 369,007 and 68,520.72

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Solution

The fourth proportional to 245,998.20, 369,007 and 68,520.72 is: 102,783.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    245,998.20 : 369,007 = 68,520.72 : x
  2. Step 2: Convert to fraction form
    245,998.20/369,007 = 68,520.72/x
  3. Step 3: Cross multiply
    245,998.20x = 369,007 × 68,520.72
  4. Step 4: Simplify right side
    245,998.20x = 25,284,625,325.04
  5. Step 5: Solve for x
    x = 25,284,625,325.04/245,998.20
  6. Step 6: Final answer
    x = 102,783.78

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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.