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Finding the Fourth Proportional to 299,433.78, 448,912.26 and 172,930.14

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Solution

The fourth proportional to 299,433.78, 448,912.26 and 172,930.14 is: 259,257.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    299,433.78 : 448,912.26 = 172,930.14 : x
  2. Step 2: Convert to fraction form
    299,433.78/448,912.26 = 172,930.14/x
  3. Step 3: Cross multiply
    299,433.78x = 448,912.26 × 172,930.14
  4. Step 4: Simplify right side
    299,433.78x = 77,630,459,969.52
  5. Step 5: Solve for x
    x = 77,630,459,969.52/299,433.78
  6. Step 6: Final answer
    x = 259,257.52

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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.