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Finding the Fourth Proportional to 299,114.72, 448,575.03 and 99,381.48

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Solution

The fourth proportional to 299,114.72, 448,575.03 and 99,381.48 is: 149,039.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    299,114.72 : 448,575.03 = 99,381.48 : x
  2. Step 2: Convert to fraction form
    299,114.72/448,575.03 = 99,381.48/x
  3. Step 3: Cross multiply
    299,114.72x = 448,575.03 × 99,381.48
  4. Step 4: Simplify right side
    299,114.72x = 44,580,048,690.29
  5. Step 5: Solve for x
    x = 44,580,048,690.29/299,114.72
  6. Step 6: Final answer
    x = 149,039.97

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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.