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Finding the Fourth Proportional to 352,673.44, 486,838.28 and 238,107.28

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Solution

The fourth proportional to 352,673.44, 486,838.28 and 238,107.28 is: 328,688.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    352,673.44 : 486,838.28 = 238,107.28 : x
  2. Step 2: Convert to fraction form
    352,673.44/486,838.28 = 238,107.28/x
  3. Step 3: Cross multiply
    352,673.44x = 486,838.28 × 238,107.28
  4. Step 4: Simplify right side
    352,673.44x = 115,919,738,650.68
  5. Step 5: Solve for x
    x = 115,919,738,650.68/352,673.44
  6. Step 6: Final answer
    x = 328,688.60

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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.