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Finding the Fourth Proportional to 299,143.72, 448,341.37 and 149,425.79

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Solution

The fourth proportional to 299,143.72, 448,341.37 and 149,425.79 is: 223,951.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    299,143.72 : 448,341.37 = 149,425.79 : x
  2. Step 2: Convert to fraction form
    299,143.72/448,341.37 = 149,425.79/x
  3. Step 3: Cross multiply
    299,143.72x = 448,341.37 × 149,425.79
  4. Step 4: Simplify right side
    299,143.72x = 66,993,763,401.93
  5. Step 5: Solve for x
    x = 66,993,763,401.93/299,143.72
  6. Step 6: Final answer
    x = 223,951.76

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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.