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Finding the Fourth Proportional to 339,536.60, 508,721.70 and 161,660.60

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Solution

The fourth proportional to 339,536.60, 508,721.70 and 161,660.60 is: 242,213.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    339,536.60 : 508,721.70 = 161,660.60 : x
  2. Step 2: Convert to fraction form
    339,536.60/508,721.70 = 161,660.60/x
  3. Step 3: Cross multiply
    339,536.60x = 508,721.70 × 161,660.60
  4. Step 4: Simplify right side
    339,536.60x = 82,240,255,255.02
  5. Step 5: Solve for x
    x = 82,240,255,255.02/339,536.60
  6. Step 6: Final answer
    x = 242,213.23

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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.