Home / 215,629.60-323,444.40-84,301.60

Finding the Fourth Proportional to 215,629.60, 323,444.40 and 84,301.60

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Solution

The fourth proportional to 215,629.60, 323,444.40 and 84,301.60 is: 126,452.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    215,629.60 : 323,444.40 = 84,301.60 : x
  2. Step 2: Convert to fraction form
    215,629.60/323,444.40 = 84,301.60/x
  3. Step 3: Cross multiply
    215,629.60x = 323,444.40 × 84,301.60
  4. Step 4: Simplify right side
    215,629.60x = 27,266,880,431.04
  5. Step 5: Solve for x
    x = 27,266,880,431.04/215,629.60
  6. Step 6: Final answer
    x = 126,452.40

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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.