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Finding the Fourth Proportional to 200,748.75, 301,239.77 and 89,940.75

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Solution

The fourth proportional to 200,748.75, 301,239.77 and 89,940.75 is: 134,963.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    200,748.75 : 301,239.77 = 89,940.75 : x
  2. Step 2: Convert to fraction form
    200,748.75/301,239.77 = 89,940.75/x
  3. Step 3: Cross multiply
    200,748.75x = 301,239.77 × 89,940.75
  4. Step 4: Simplify right side
    200,748.75x = 27,093,730,393.92
  5. Step 5: Solve for x
    x = 27,093,730,393.92/200,748.75
  6. Step 6: Final answer
    x = 134,963.38

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1.5x scale

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.