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Finding the Fourth Proportional to 299,939.84, 449,898.56 and 75,301.76

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Solution

The fourth proportional to 299,939.84, 449,898.56 and 75,301.76 is: 112,949.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    299,939.84 : 449,898.56 = 75,301.76 : x
  2. Step 2: Convert to fraction form
    299,939.84/449,898.56 = 75,301.76/x
  3. Step 3: Cross multiply
    299,939.84x = 449,898.56 × 75,301.76
  4. Step 4: Simplify right side
    299,939.84x = 33,878,153,389.47
  5. Step 5: Solve for x
    x = 33,878,153,389.47/299,939.84
  6. Step 6: Final answer
    x = 112,949.83

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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.