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Finding the Fourth Proportional to 352,422, 486,343.78 and 191,277.24

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Solution

The fourth proportional to 352,422, 486,343.78 and 191,277.24 is: 263,963.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    352,422 : 486,343.78 = 191,277.24 : x
  2. Step 2: Convert to fraction form
    352,422/486,343.78 = 191,277.24/x
  3. Step 3: Cross multiply
    352,422x = 486,343.78 × 191,277.24
  4. Step 4: Simplify right side
    352,422x = 93,026,495,929.57
  5. Step 5: Solve for x
    x = 93,026,495,929.57/352,422
  6. Step 6: Final answer
    x = 263,963.36

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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.