Home / 215,246.80-322,985.40-96,936.40

Finding the Fourth Proportional to 215,246.80, 322,985.40 and 96,936.40

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Solution

The fourth proportional to 215,246.80, 322,985.40 and 96,936.40 is: 145,456.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    215,246.80 : 322,985.40 = 96,936.40 : x
  2. Step 2: Convert to fraction form
    215,246.80/322,985.40 = 96,936.40/x
  3. Step 3: Cross multiply
    215,246.80x = 322,985.40 × 96,936.40
  4. Step 4: Simplify right side
    215,246.80x = 31,309,041,928.56
  5. Step 5: Solve for x
    x = 31,309,041,928.56/215,246.80
  6. Step 6: Final answer
    x = 145,456.48

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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.