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Finding the Fourth Proportional to 375,258.30, 517,859.51 and 222,305.19

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Solution

The fourth proportional to 375,258.30, 517,859.51 and 222,305.19 is: 306,782.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    375,258.30 : 517,859.51 = 222,305.19 : x
  2. Step 2: Convert to fraction form
    375,258.30/517,859.51 = 222,305.19/x
  3. Step 3: Cross multiply
    375,258.30x = 517,859.51 × 222,305.19
  4. Step 4: Simplify right side
    375,258.30x = 115,122,856,763.86
  5. Step 5: Solve for x
    x = 115,122,856,763.86/375,258.30
  6. Step 6: Final answer
    x = 306,782.97

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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.