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Finding the Fourth Proportional to 220,388.06, 304,134 and 119,786.06

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Solution

The fourth proportional to 220,388.06, 304,134 and 119,786.06 is: 165,303.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    220,388.06 : 304,134 = 119,786.06 : x
  2. Step 2: Convert to fraction form
    220,388.06/304,134 = 119,786.06/x
  3. Step 3: Cross multiply
    220,388.06x = 304,134 × 119,786.06
  4. Step 4: Simplify right side
    220,388.06x = 36,431,013,572.04
  5. Step 5: Solve for x
    x = 36,431,013,572.04/220,388.06
  6. Step 6: Final answer
    x = 165,303.94

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Double scale
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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.