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Finding the Fourth Proportional to 187,469.80, 280,767.30 and 183,711.40

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Solution

The fourth proportional to 187,469.80, 280,767.30 and 183,711.40 is: 275,138.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    187,469.80 : 280,767.30 = 183,711.40 : x
  2. Step 2: Convert to fraction form
    187,469.80/280,767.30 = 183,711.40/x
  3. Step 3: Cross multiply
    187,469.80x = 280,767.30 × 183,711.40
  4. Step 4: Simplify right side
    187,469.80x = 51,580,153,757.22
  5. Step 5: Solve for x
    x = 51,580,153,757.22/187,469.80
  6. Step 6: Final answer
    x = 275,138.47

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.