Home / 213,583.20-320,216.62-129,323.56

Finding the Fourth Proportional to 213,583.20, 320,216.62 and 129,323.56

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Solution

The fourth proportional to 213,583.20, 320,216.62 and 129,323.56 is: 193,889.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    213,583.20 : 320,216.62 = 129,323.56 : x
  2. Step 2: Convert to fraction form
    213,583.20/320,216.62 = 129,323.56/x
  3. Step 3: Cross multiply
    213,583.20x = 320,216.62 × 129,323.56
  4. Step 4: Simplify right side
    213,583.20x = 41,411,553,269.57
  5. Step 5: Solve for x
    x = 41,411,553,269.57/213,583.20
  6. Step 6: Final answer
    x = 193,889.56

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1.5x scale

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.