Home / 354,839.06-489,673.58-201,876.86

Finding the Fourth Proportional to 354,839.06, 489,673.58 and 201,876.86

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Solution

The fourth proportional to 354,839.06, 489,673.58 and 201,876.86 is: 278,587.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    354,839.06 : 489,673.58 = 201,876.86 : x
  2. Step 2: Convert to fraction form
    354,839.06/489,673.58 = 201,876.86/x
  3. Step 3: Cross multiply
    354,839.06x = 489,673.58 × 201,876.86
  4. Step 4: Simplify right side
    354,839.06x = 98,853,764,755.36
  5. Step 5: Solve for x
    x = 98,853,764,755.36/354,839.06
  6. Step 6: Final answer
    x = 278,587.61

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1.5x scale

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.