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Finding the Fourth Proportional to 203,369.46, 280,659.24 and 112,727.36

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Solution

The fourth proportional to 203,369.46, 280,659.24 and 112,727.36 is: 155,568.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    203,369.46 : 280,659.24 = 112,727.36 : x
  2. Step 2: Convert to fraction form
    203,369.46/280,659.24 = 112,727.36/x
  3. Step 3: Cross multiply
    203,369.46x = 280,659.24 × 112,727.36
  4. Step 4: Simplify right side
    203,369.46x = 31,637,973,781.51
  5. Step 5: Solve for x
    x = 31,637,973,781.51/203,369.46
  6. Step 6: Final answer
    x = 155,568.95

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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.