Home / 397,630.65-548,689.23-225,513.75

Finding the Fourth Proportional to 397,630.65, 548,689.23 and 225,513.75

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Solution

The fourth proportional to 397,630.65, 548,689.23 and 225,513.75 is: 311,185.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    397,630.65 : 548,689.23 = 225,513.75 : x
  2. Step 2: Convert to fraction form
    397,630.65/548,689.23 = 225,513.75/x
  3. Step 3: Cross multiply
    397,630.65x = 548,689.23 × 225,513.75
  4. Step 4: Simplify right side
    397,630.65x = 123,736,965,841.91
  5. Step 5: Solve for x
    x = 123,736,965,841.91/397,630.65
  6. Step 6: Final answer
    x = 311,185.68

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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.