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Finding the Fourth Proportional to 201,883.72, 278,532.66 and 130,311.31

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Solution

The fourth proportional to 201,883.72, 278,532.66 and 130,311.31 is: 179,786.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    201,883.72 : 278,532.66 = 130,311.31 : x
  2. Step 2: Convert to fraction form
    201,883.72/278,532.66 = 130,311.31/x
  3. Step 3: Cross multiply
    201,883.72x = 278,532.66 × 130,311.31
  4. Step 4: Simplify right side
    201,883.72x = 36,295,955,802.38
  5. Step 5: Solve for x
    x = 36,295,955,802.38/201,883.72
  6. Step 6: Final answer
    x = 179,786.44

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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.