Home / 401,112.72-553,542.66-219,812.58

Finding the Fourth Proportional to 401,112.72, 553,542.66 and 219,812.58

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Solution

The fourth proportional to 401,112.72, 553,542.66 and 219,812.58 is: 303,345.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    401,112.72 : 553,542.66 = 219,812.58 : x
  2. Step 2: Convert to fraction form
    401,112.72/553,542.66 = 219,812.58/x
  3. Step 3: Cross multiply
    401,112.72x = 553,542.66 × 219,812.58
  4. Step 4: Simplify right side
    401,112.72x = 121,675,640,234.66
  5. Step 5: Solve for x
    x = 121,675,640,234.66/401,112.72
  6. Step 6: Final answer
    x = 303,345.25

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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.