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Finding the Fourth Proportional to 253,348.28, 349,606.14 and 140,164.28

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Solution

The fourth proportional to 253,348.28, 349,606.14 and 140,164.28 is: 193,418.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    253,348.28 : 349,606.14 = 140,164.28 : x
  2. Step 2: Convert to fraction form
    253,348.28/349,606.14 = 140,164.28/x
  3. Step 3: Cross multiply
    253,348.28x = 349,606.14 × 140,164.28
  4. Step 4: Simplify right side
    253,348.28x = 49,002,292,896.68
  5. Step 5: Solve for x
    x = 49,002,292,896.68/253,348.28
  6. Step 6: Final answer
    x = 193,418.69

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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.