Home / 215,426.72-323,189.22-65,680.40

Finding the Fourth Proportional to 215,426.72, 323,189.22 and 65,680.40

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Solution

The fourth proportional to 215,426.72, 323,189.22 and 65,680.40 is: 98,535.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    215,426.72 : 323,189.22 = 65,680.40 : x
  2. Step 2: Convert to fraction form
    215,426.72/323,189.22 = 65,680.40/x
  3. Step 3: Cross multiply
    215,426.72x = 323,189.22 × 65,680.40
  4. Step 4: Simplify right side
    215,426.72x = 21,227,197,245.29
  5. Step 5: Solve for x
    x = 21,227,197,245.29/215,426.72
  6. Step 6: Final answer
    x = 98,535.58

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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.