Home / 355,936.52-491,297.46-205,139.72

Finding the Fourth Proportional to 355,936.52, 491,297.46 and 205,139.72

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Solution

The fourth proportional to 355,936.52, 491,297.46 and 205,139.72 is: 283,153.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    355,936.52 : 491,297.46 = 205,139.72 : x
  2. Step 2: Convert to fraction form
    355,936.52/491,297.46 = 205,139.72/x
  3. Step 3: Cross multiply
    355,936.52x = 491,297.46 × 205,139.72
  4. Step 4: Simplify right side
    355,936.52x = 100,784,623,381.11
  5. Step 5: Solve for x
    x = 100,784,623,381.11/355,936.52
  6. Step 6: Final answer
    x = 283,153.37

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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.