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Finding the Fourth Proportional to 253,654.26, 349,246.20 and 215,334.36

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Solution

The fourth proportional to 253,654.26, 349,246.20 and 215,334.36 is: 296,485.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    253,654.26 : 349,246.20 = 215,334.36 : x
  2. Step 2: Convert to fraction form
    253,654.26/349,246.20 = 215,334.36/x
  3. Step 3: Cross multiply
    253,654.26x = 349,246.20 × 215,334.36
  4. Step 4: Simplify right side
    253,654.26x = 75,204,706,959.43
  5. Step 5: Solve for x
    x = 75,204,706,959.43/253,654.26
  6. Step 6: Final answer
    x = 296,485.09

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1.5x scale

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.