Home / 427,936.20-641,752.38-158,006.64

Finding the Fourth Proportional to 427,936.20, 641,752.38 and 158,006.64

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Solution

The fourth proportional to 427,936.20, 641,752.38 and 158,006.64 is: 236,953.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    427,936.20 : 641,752.38 = 158,006.64 : x
  2. Step 2: Convert to fraction form
    427,936.20/641,752.38 = 158,006.64/x
  3. Step 3: Cross multiply
    427,936.20x = 641,752.38 × 158,006.64
  4. Step 4: Simplify right side
    427,936.20x = 101,401,137,275.80
  5. Step 5: Solve for x
    x = 101,401,137,275.80/427,936.20
  6. Step 6: Final answer
    x = 236,953.87

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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.