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Finding the Fourth Proportional to 255,016.92, 351,997.47 and 170,133.78

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Solution

The fourth proportional to 255,016.92, 351,997.47 and 170,133.78 is: 234,834.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    255,016.92 : 351,997.47 = 170,133.78 : x
  2. Step 2: Convert to fraction form
    255,016.92/351,997.47 = 170,133.78/x
  3. Step 3: Cross multiply
    255,016.92x = 351,997.47 × 170,133.78
  4. Step 4: Simplify right side
    255,016.92x = 59,886,660,121.54
  5. Step 5: Solve for x
    x = 59,886,660,121.54/255,016.92
  6. Step 6: Final answer
    x = 234,834.07

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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.