Home / 213,474.40-320,218.08-73,231

Finding the Fourth Proportional to 213,474.40, 320,218.08 and 73,231

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Solution

The fourth proportional to 213,474.40, 320,218.08 and 73,231 is: 109,848.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    213,474.40 : 320,218.08 = 73,231 : x
  2. Step 2: Convert to fraction form
    213,474.40/320,218.08 = 73,231/x
  3. Step 3: Cross multiply
    213,474.40x = 320,218.08 × 73,231
  4. Step 4: Simplify right side
    213,474.40x = 23,449,890,216.48
  5. Step 5: Solve for x
    x = 23,449,890,216.48/213,474.40
  6. Step 6: Final answer
    x = 109,848.72

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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.