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Finding the Fourth Proportional to 665,013.33, 997,660.17 and 215,699.24

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Solution

The fourth proportional to 665,013.33, 997,660.17 and 215,699.24 is: 323,594.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    665,013.33 : 997,660.17 = 215,699.24 : x
  2. Step 2: Convert to fraction form
    665,013.33/997,660.17 = 215,699.24/x
  3. Step 3: Cross multiply
    665,013.33x = 997,660.17 × 215,699.24
  4. Step 4: Simplify right side
    665,013.33x = 215,194,535,458.97
  5. Step 5: Solve for x
    x = 215,194,535,458.97/665,013.33
  6. Step 6: Final answer
    x = 323,594.32

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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.