Home / 351,911.32-485,631.66-198,947.14

Finding the Fourth Proportional to 351,911.32, 485,631.66 and 198,947.14

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Solution

The fourth proportional to 351,911.32, 485,631.66 and 198,947.14 is: 274,543.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    351,911.32 : 485,631.66 = 198,947.14 : x
  2. Step 2: Convert to fraction form
    351,911.32/485,631.66 = 198,947.14/x
  3. Step 3: Cross multiply
    351,911.32x = 485,631.66 × 198,947.14
  4. Step 4: Simplify right side
    351,911.32x = 96,615,029,850.45
  5. Step 5: Solve for x
    x = 96,615,029,850.45/351,911.32
  6. Step 6: Final answer
    x = 274,543.68

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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.