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Finding the Fourth Proportional to 205,341, 308,134.38 and 88,605

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Solution

The fourth proportional to 205,341, 308,134.38 and 88,605 is: 132,960.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    205,341 : 308,134.38 = 88,605 : x
  2. Step 2: Convert to fraction form
    205,341/308,134.38 = 88,605/x
  3. Step 3: Cross multiply
    205,341x = 308,134.38 × 88,605
  4. Step 4: Simplify right side
    205,341x = 27,302,246,739.90
  5. Step 5: Solve for x
    x = 27,302,246,739.90/205,341
  6. Step 6: Final answer
    x = 132,960.52

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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.