Home / 400,474.62-552,632.49-219,186.18

Finding the Fourth Proportional to 400,474.62, 552,632.49 and 219,186.18

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Solution

The fourth proportional to 400,474.62, 552,632.49 and 219,186.18 is: 302,464.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    400,474.62 : 552,632.49 = 219,186.18 : x
  2. Step 2: Convert to fraction form
    400,474.62/552,632.49 = 219,186.18/x
  3. Step 3: Cross multiply
    400,474.62x = 552,632.49 × 219,186.18
  4. Step 4: Simplify right side
    400,474.62x = 121,129,404,426.99
  5. Step 5: Solve for x
    x = 121,129,404,426.99/400,474.62
  6. Step 6: Final answer
    x = 302,464.62

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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.