Home / 213,530.55-320,295.83-134,992.95

Finding the Fourth Proportional to 213,530.55, 320,295.83 and 134,992.95

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Solution

The fourth proportional to 213,530.55, 320,295.83 and 134,992.95 is: 202,489.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    213,530.55 : 320,295.83 = 134,992.95 : x
  2. Step 2: Convert to fraction form
    213,530.55/320,295.83 = 134,992.95/x
  3. Step 3: Cross multiply
    213,530.55x = 320,295.83 × 134,992.95
  4. Step 4: Simplify right side
    213,530.55x = 43,237,678,289.43
  5. Step 5: Solve for x
    x = 43,237,678,289.43/213,530.55
  6. Step 6: Final answer
    x = 202,489.43

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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.