Home / 665,193.20-997,935.60-215,837.60

Finding the Fourth Proportional to 665,193.20, 997,935.60 and 215,837.60

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Solution

The fourth proportional to 665,193.20, 997,935.60 and 215,837.60 is: 323,803.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    665,193.20 : 997,935.60 = 215,837.60 : x
  2. Step 2: Convert to fraction form
    665,193.20/997,935.60 = 215,837.60/x
  3. Step 3: Cross multiply
    665,193.20x = 997,935.60 × 215,837.60
  4. Step 4: Simplify right side
    665,193.20x = 215,392,024,858.56
  5. Step 5: Solve for x
    x = 215,392,024,858.56/665,193.20
  6. Step 6: Final answer
    x = 323,803.71

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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.