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Finding the Fourth Proportional to 299,888.80, 449,545.20 and 173,399.20

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Solution

The fourth proportional to 299,888.80, 449,545.20 and 173,399.20 is: 259,932.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    299,888.80 : 449,545.20 = 173,399.20 : x
  2. Step 2: Convert to fraction form
    299,888.80/449,545.20 = 173,399.20/x
  3. Step 3: Cross multiply
    299,888.80x = 449,545.20 × 173,399.20
  4. Step 4: Simplify right side
    299,888.80x = 77,950,778,043.84
  5. Step 5: Solve for x
    x = 77,950,778,043.84/299,888.80
  6. Step 6: Final answer
    x = 259,932.28

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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.