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Finding the Fourth Proportional to 222,963.65, 307,785.83 and 136,936.58

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Solution

The fourth proportional to 222,963.65, 307,785.83 and 136,936.58 is: 189,031.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    222,963.65 : 307,785.83 = 136,936.58 : x
  2. Step 2: Convert to fraction form
    222,963.65/307,785.83 = 136,936.58/x
  3. Step 3: Cross multiply
    222,963.65x = 307,785.83 × 136,936.58
  4. Step 4: Simplify right side
    222,963.65x = 42,147,138,247.98
  5. Step 5: Solve for x
    x = 42,147,138,247.98/222,963.65
  6. Step 6: Final answer
    x = 189,031.43

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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.