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Finding the Fourth Proportional to 299,290.27, 448,939.50 and 99,611.36

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Solution

The fourth proportional to 299,290.27, 448,939.50 and 99,611.36 is: 149,418.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    299,290.27 : 448,939.50 = 99,611.36 : x
  2. Step 2: Convert to fraction form
    299,290.27/448,939.50 = 99,611.36/x
  3. Step 3: Cross multiply
    299,290.27x = 448,939.50 × 99,611.36
  4. Step 4: Simplify right side
    299,290.27x = 44,719,473,006.92
  5. Step 5: Solve for x
    x = 44,719,473,006.92/299,290.27
  6. Step 6: Final answer
    x = 149,418.40

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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.