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Finding the Fourth Proportional to 299,467.40, 448,484.97 and 172,723.41

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Solution

The fourth proportional to 299,467.40, 448,484.97 and 172,723.41 is: 258,672.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    299,467.40 : 448,484.97 = 172,723.41 : x
  2. Step 2: Convert to fraction form
    299,467.40/448,484.97 = 172,723.41/x
  3. Step 3: Cross multiply
    299,467.40x = 448,484.97 × 172,723.41
  4. Step 4: Simplify right side
    299,467.40x = 77,463,851,766.93
  5. Step 5: Solve for x
    x = 77,463,851,766.93/299,467.40
  6. Step 6: Final answer
    x = 258,672.07

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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.