Home / 213,583.70-320,217.38-129,324.06

Finding the Fourth Proportional to 213,583.70, 320,217.38 and 129,324.06

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Solution

The fourth proportional to 213,583.70, 320,217.38 and 129,324.06 is: 193,890.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    213,583.70 : 320,217.38 = 129,324.06 : x
  2. Step 2: Convert to fraction form
    213,583.70/320,217.38 = 129,324.06/x
  3. Step 3: Cross multiply
    213,583.70x = 320,217.38 × 129,324.06
  4. Step 4: Simplify right side
    213,583.70x = 41,411,811,017.54
  5. Step 5: Solve for x
    x = 41,411,811,017.54/213,583.70
  6. Step 6: Final answer
    x = 193,890.31

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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.