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Finding the Fourth Proportional to 251,924.42, 347,671.42 and 138,747.14

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Solution

The fourth proportional to 251,924.42, 347,671.42 and 138,747.14 is: 191,479.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    251,924.42 : 347,671.42 = 138,747.14 : x
  2. Step 2: Convert to fraction form
    251,924.42/347,671.42 = 138,747.14/x
  3. Step 3: Cross multiply
    251,924.42x = 347,671.42 × 138,747.14
  4. Step 4: Simplify right side
    251,924.42x = 48,238,415,184.74
  5. Step 5: Solve for x
    x = 48,238,415,184.74/251,924.42
  6. Step 6: Final answer
    x = 191,479.71

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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.