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Finding the Fourth Proportional to 299,389.68, 449,408.04 and 266,321.52

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Solution

The fourth proportional to 299,389.68, 449,408.04 and 266,321.52 is: 399,770.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    299,389.68 : 449,408.04 = 266,321.52 : x
  2. Step 2: Convert to fraction form
    299,389.68/449,408.04 = 266,321.52/x
  3. Step 3: Cross multiply
    299,389.68x = 449,408.04 × 266,321.52
  4. Step 4: Simplify right side
    299,389.68x = 119,687,032,313.02
  5. Step 5: Solve for x
    x = 119,687,032,313.02/299,389.68
  6. Step 6: Final answer
    x = 399,770.07

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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.