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Finding the Fourth Proportional to 253,463.67, 349,790.91 and 140,286.39

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Solution

The fourth proportional to 253,463.67, 349,790.91 and 140,286.39 is: 193,601.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    253,463.67 : 349,790.91 = 140,286.39 : x
  2. Step 2: Convert to fraction form
    253,463.67/349,790.91 = 140,286.39/x
  3. Step 3: Cross multiply
    253,463.67x = 349,790.91 × 140,286.39
  4. Step 4: Simplify right side
    253,463.67x = 49,070,904,018.71
  5. Step 5: Solve for x
    x = 49,070,904,018.71/253,463.67
  6. Step 6: Final answer
    x = 193,601.33

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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.