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Finding the Fourth Proportional to 179,498.66, 269,297.88 and 78,305.56

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Solution

The fourth proportional to 179,498.66, 269,297.88 and 78,305.56 is: 117,480.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    179,498.66 : 269,297.88 = 78,305.56 : x
  2. Step 2: Convert to fraction form
    179,498.66/269,297.88 = 78,305.56/x
  3. Step 3: Cross multiply
    179,498.66x = 269,297.88 × 78,305.56
  4. Step 4: Simplify right side
    179,498.66x = 21,087,520,626.97
  5. Step 5: Solve for x
    x = 21,087,520,626.97/179,498.66
  6. Step 6: Final answer
    x = 117,480.10

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.