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Finding the Fourth Proportional to 199,645.58, 299,448.23 and 66,511.55

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Solution

The fourth proportional to 199,645.58, 299,448.23 and 66,511.55 is: 99,760.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    199,645.58 : 299,448.23 = 66,511.55 : x
  2. Step 2: Convert to fraction form
    199,645.58/299,448.23 = 66,511.55/x
  3. Step 3: Cross multiply
    199,645.58x = 299,448.23 × 66,511.55
  4. Step 4: Simplify right side
    199,645.58x = 19,916,766,338.12
  5. Step 5: Solve for x
    x = 19,916,766,338.12/199,645.58
  6. Step 6: Final answer
    x = 99,760.62

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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.