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Finding the Fourth Proportional to 208,843.40, 313,265.10 and 187,192.10

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Solution

The fourth proportional to 208,843.40, 313,265.10 and 187,192.10 is: 280,788.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    208,843.40 : 313,265.10 = 187,192.10 : x
  2. Step 2: Convert to fraction form
    208,843.40/313,265.10 = 187,192.10/x
  3. Step 3: Cross multiply
    208,843.40x = 313,265.10 × 187,192.10
  4. Step 4: Simplify right side
    208,843.40x = 58,640,751,925.71
  5. Step 5: Solve for x
    x = 58,640,751,925.71/208,843.40
  6. Step 6: Final answer
    x = 280,788.15

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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.