Home / 400,453.72-552,618.66-219,161.96

Finding the Fourth Proportional to 400,453.72, 552,618.66 and 219,161.96

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Solution

The fourth proportional to 400,453.72, 552,618.66 and 219,161.96 is: 302,439.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    400,453.72 : 552,618.66 = 219,161.96 : x
  2. Step 2: Convert to fraction form
    400,453.72/552,618.66 = 219,161.96/x
  3. Step 3: Cross multiply
    400,453.72x = 552,618.66 × 219,161.96
  4. Step 4: Simplify right side
    400,453.72x = 121,112,988,658.17
  5. Step 5: Solve for x
    x = 121,112,988,658.17/400,453.72
  6. Step 6: Final answer
    x = 302,439.41

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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.