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Finding the Fourth Proportional to 556,936.20, 835,404.30 and 136,206.60

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Solution

The fourth proportional to 556,936.20, 835,404.30 and 136,206.60 is: 204,309.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    556,936.20 : 835,404.30 = 136,206.60 : x
  2. Step 2: Convert to fraction form
    556,936.20/835,404.30 = 136,206.60/x
  3. Step 3: Cross multiply
    556,936.20x = 835,404.30 × 136,206.60
  4. Step 4: Simplify right side
    556,936.20x = 113,787,579,328.38
  5. Step 5: Solve for x
    x = 113,787,579,328.38/556,936.20
  6. Step 6: Final answer
    x = 204,309.90

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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.