Home / 299,988.72-449,983.09-120,155.80

Finding the Fourth Proportional to 299,988.72, 449,983.09 and 120,155.80

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Solution

The fourth proportional to 299,988.72, 449,983.09 and 120,155.80 is: 180,233.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    299,988.72 : 449,983.09 = 120,155.80 : x
  2. Step 2: Convert to fraction form
    299,988.72/449,983.09 = 120,155.80/x
  3. Step 3: Cross multiply
    299,988.72x = 449,983.09 × 120,155.80
  4. Step 4: Simplify right side
    299,988.72x = 54,068,078,165.42
  5. Step 5: Solve for x
    x = 54,068,078,165.42/299,988.72
  6. Step 6: Final answer
    x = 180,233.70

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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.