Home / 213,459.30-320,237.82-73,217.52

Finding the Fourth Proportional to 213,459.30, 320,237.82 and 73,217.52

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Solution

The fourth proportional to 213,459.30, 320,237.82 and 73,217.52 is: 109,843.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    213,459.30 : 320,237.82 = 73,217.52 : x
  2. Step 2: Convert to fraction form
    213,459.30/320,237.82 = 73,217.52/x
  3. Step 3: Cross multiply
    213,459.30x = 320,237.82 × 73,217.52
  4. Step 4: Simplify right side
    213,459.30x = 23,447,018,990.61
  5. Step 5: Solve for x
    x = 23,447,018,990.61/213,459.30
  6. Step 6: Final answer
    x = 109,843.04

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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.