Home / 213,511.98-320,301.18-71,313.24

Finding the Fourth Proportional to 213,511.98, 320,301.18 and 71,313.24

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Solution

The fourth proportional to 213,511.98, 320,301.18 and 71,313.24 is: 106,980.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    213,511.98 : 320,301.18 = 71,313.24 : x
  2. Step 2: Convert to fraction form
    213,511.98/320,301.18 = 71,313.24/x
  3. Step 3: Cross multiply
    213,511.98x = 320,301.18 × 71,313.24
  4. Step 4: Simplify right side
    213,511.98x = 22,841,713,942.59
  5. Step 5: Solve for x
    x = 22,841,713,942.59/213,511.98
  6. Step 6: Final answer
    x = 106,980.95

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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.