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Finding the Fourth Proportional to 299,138.33, 448,333.30 and 149,420.42

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Solution

The fourth proportional to 299,138.33, 448,333.30 and 149,420.42 is: 223,943.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    299,138.33 : 448,333.30 = 149,420.42 : x
  2. Step 2: Convert to fraction form
    299,138.33/448,333.30 = 149,420.42/x
  3. Step 3: Cross multiply
    299,138.33x = 448,333.30 × 149,420.42
  4. Step 4: Simplify right side
    299,138.33x = 66,990,149,985.99
  5. Step 5: Solve for x
    x = 66,990,149,985.99/299,138.33
  6. Step 6: Final answer
    x = 223,943.72

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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.