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Finding the Fourth Proportional to 253,515.96, 349,847.10 and 140,339.52

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Solution

The fourth proportional to 253,515.96, 349,847.10 and 140,339.52 is: 193,665.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    253,515.96 : 349,847.10 = 140,339.52 : x
  2. Step 2: Convert to fraction form
    253,515.96/349,847.10 = 140,339.52/x
  3. Step 3: Cross multiply
    253,515.96x = 349,847.10 × 140,339.52
  4. Step 4: Simplify right side
    253,515.96x = 49,097,374,087.39
  5. Step 5: Solve for x
    x = 49,097,374,087.39/253,515.96
  6. Step 6: Final answer
    x = 193,665.81

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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.