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Finding the Fourth Proportional to 299,090.73, 448,633.79 and 74,449.63

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Solution

The fourth proportional to 299,090.73, 448,633.79 and 74,449.63 is: 111,673.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    299,090.73 : 448,633.79 = 74,449.63 : x
  2. Step 2: Convert to fraction form
    299,090.73/448,633.79 = 74,449.63/x
  3. Step 3: Cross multiply
    299,090.73x = 448,633.79 × 74,449.63
  4. Step 4: Simplify right side
    299,090.73x = 33,400,620,138.73
  5. Step 5: Solve for x
    x = 33,400,620,138.73/299,090.73
  6. Step 6: Final answer
    x = 111,673.87

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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.