Home / 299,981.64-413,979.09-203,215.10

Finding the Fourth Proportional to 299,981.64, 413,979.09 and 203,215.10

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Solution

The fourth proportional to 299,981.64, 413,979.09 and 203,215.10 is: 280,439.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    299,981.64 : 413,979.09 = 203,215.10 : x
  2. Step 2: Convert to fraction form
    299,981.64/413,979.09 = 203,215.10/x
  3. Step 3: Cross multiply
    299,981.64x = 413,979.09 × 203,215.10
  4. Step 4: Simplify right side
    299,981.64x = 84,126,800,102.36
  5. Step 5: Solve for x
    x = 84,126,800,102.36/299,981.64
  6. Step 6: Final answer
    x = 280,439.83

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.