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Finding the Fourth Proportional to 449,546.68, 674,651.85 and 212,888.98

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Solution

The fourth proportional to 449,546.68, 674,651.85 and 212,888.98 is: 319,490.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    449,546.68 : 674,651.85 = 212,888.98 : x
  2. Step 2: Convert to fraction form
    449,546.68/674,651.85 = 212,888.98/x
  3. Step 3: Cross multiply
    449,546.68x = 674,651.85 × 212,888.98
  4. Step 4: Simplify right side
    449,546.68x = 143,625,944,201.61
  5. Step 5: Solve for x
    x = 143,625,944,201.61/449,546.68
  6. Step 6: Final answer
    x = 319,490.61

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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.