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Finding the Fourth Proportional to 371,676.05, 512,896.52 and 210,527.86

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Solution

The fourth proportional to 371,676.05, 512,896.52 and 210,527.86 is: 290,519.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    371,676.05 : 512,896.52 = 210,527.86 : x
  2. Step 2: Convert to fraction form
    371,676.05/512,896.52 = 210,527.86/x
  3. Step 3: Cross multiply
    371,676.05x = 512,896.52 × 210,527.86
  4. Step 4: Simplify right side
    371,676.05x = 107,979,006,757.05
  5. Step 5: Solve for x
    x = 107,979,006,757.05/371,676.05
  6. Step 6: Final answer
    x = 290,519.14

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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.