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Finding the Fourth Proportional to 253,877.64, 350,336.86 and 139,134.42

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Solution

The fourth proportional to 253,877.64, 350,336.86 and 139,134.42 is: 191,997.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    253,877.64 : 350,336.86 = 139,134.42 : x
  2. Step 2: Convert to fraction form
    253,877.64/350,336.86 = 139,134.42/x
  3. Step 3: Cross multiply
    253,877.64x = 350,336.86 × 139,134.42
  4. Step 4: Simplify right side
    253,877.64x = 48,743,915,820.72
  5. Step 5: Solve for x
    x = 48,743,915,820.72/253,877.64
  6. Step 6: Final answer
    x = 191,997.67

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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.