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Finding the Fourth Proportional to 201,282.88, 277,796.64 and 129,870.64

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Solution

The fourth proportional to 201,282.88, 277,796.64 and 129,870.64 is: 179,238.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    201,282.88 : 277,796.64 = 129,870.64 : x
  2. Step 2: Convert to fraction form
    201,282.88/277,796.64 = 129,870.64/x
  3. Step 3: Cross multiply
    201,282.88x = 277,796.64 × 129,870.64
  4. Step 4: Simplify right side
    201,282.88x = 36,077,627,426.65
  5. Step 5: Solve for x
    x = 36,077,627,426.65/201,282.88
  6. Step 6: Final answer
    x = 179,238.43

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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.