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Finding the Fourth Proportional to 352,124.28, 486,119.79 and 275,480.46

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Solution

The fourth proportional to 352,124.28, 486,119.79 and 275,480.46 is: 380,310.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    352,124.28 : 486,119.79 = 275,480.46 : x
  2. Step 2: Convert to fraction form
    352,124.28/486,119.79 = 275,480.46/x
  3. Step 3: Cross multiply
    352,124.28x = 486,119.79 × 275,480.46
  4. Step 4: Simplify right side
    352,124.28x = 133,916,503,364.30
  5. Step 5: Solve for x
    x = 133,916,503,364.30/352,124.28
  6. Step 6: Final answer
    x = 380,310.34

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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.