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Finding the Fourth Proportional to 199,801.92, 299,637 and 66,645.48

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Solution

The fourth proportional to 199,801.92, 299,637 and 66,645.48 is: 99,946.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    199,801.92 : 299,637 = 66,645.48 : x
  2. Step 2: Convert to fraction form
    199,801.92/299,637 = 66,645.48/x
  3. Step 3: Cross multiply
    199,801.92x = 299,637 × 66,645.48
  4. Step 4: Simplify right side
    199,801.92x = 19,969,451,690.76
  5. Step 5: Solve for x
    x = 19,969,451,690.76/199,801.92
  6. Step 6: Final answer
    x = 99,946.25

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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.