Home / 215,947.02-323,982.79-66,209.41

Finding the Fourth Proportional to 215,947.02, 323,982.79 and 66,209.41

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Solution

The fourth proportional to 215,947.02, 323,982.79 and 66,209.41 is: 99,333.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    215,947.02 : 323,982.79 = 66,209.41 : x
  2. Step 2: Convert to fraction form
    215,947.02/323,982.79 = 66,209.41/x
  3. Step 3: Cross multiply
    215,947.02x = 323,982.79 × 66,209.41
  4. Step 4: Simplify right side
    215,947.02x = 21,450,709,376.05
  5. Step 5: Solve for x
    x = 21,450,709,376.05/215,947.02
  6. Step 6: Final answer
    x = 99,333.20

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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.