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Finding the Fourth Proportional to 217,647.78, 300,414.33 and 127,022.82

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Solution

The fourth proportional to 217,647.78, 300,414.33 and 127,022.82 is: 175,326.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    217,647.78 : 300,414.33 = 127,022.82 : x
  2. Step 2: Convert to fraction form
    217,647.78/300,414.33 = 127,022.82/x
  3. Step 3: Cross multiply
    217,647.78x = 300,414.33 × 127,022.82
  4. Step 4: Simplify right side
    217,647.78x = 38,159,475,365.01
  5. Step 5: Solve for x
    x = 38,159,475,365.01/217,647.78
  6. Step 6: Final answer
    x = 175,326.74

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1.5x scale

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.