Home / 355,935.52-491,296.08-205,138.72

Finding the Fourth Proportional to 355,935.52, 491,296.08 and 205,138.72

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Solution

The fourth proportional to 355,935.52, 491,296.08 and 205,138.72 is: 283,151.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    355,935.52 : 491,296.08 = 205,138.72 : x
  2. Step 2: Convert to fraction form
    355,935.52/491,296.08 = 205,138.72/x
  3. Step 3: Cross multiply
    355,935.52x = 491,296.08 × 205,138.72
  4. Step 4: Simplify right side
    355,935.52x = 100,783,848,992.22
  5. Step 5: Solve for x
    x = 100,783,848,992.22/355,935.52
  6. Step 6: Final answer
    x = 283,151.98

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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.