Home / 203,564.43-280,660.60-145,490.47

Finding the Fourth Proportional to 203,564.43, 280,660.60 and 145,490.47

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Solution

The fourth proportional to 203,564.43, 280,660.60 and 145,490.47 is: 200,592.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    203,564.43 : 280,660.60 = 145,490.47 : x
  2. Step 2: Convert to fraction form
    203,564.43/280,660.60 = 145,490.47/x
  3. Step 3: Cross multiply
    203,564.43x = 280,660.60 × 145,490.47
  4. Step 4: Simplify right side
    203,564.43x = 40,833,442,604.48
  5. Step 5: Solve for x
    x = 40,833,442,604.48/203,564.43
  6. Step 6: Final answer
    x = 200,592.23

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.