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Finding the Fourth Proportional to 449,507.10, 674,266.50 and 149,987.69

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Solution

The fourth proportional to 449,507.10, 674,266.50 and 149,987.69 is: 224,983.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    449,507.10 : 674,266.50 = 149,987.69 : x
  2. Step 2: Convert to fraction form
    449,507.10/674,266.50 = 149,987.69/x
  3. Step 3: Cross multiply
    449,507.10x = 674,266.50 × 149,987.69
  4. Step 4: Simplify right side
    449,507.10x = 101,131,671,408.05
  5. Step 5: Solve for x
    x = 101,131,671,408.05/449,507.10
  6. Step 6: Final answer
    x = 224,983.48

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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.