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Finding the Fourth Proportional to 251,927.92, 347,676.24 and 138,750.64

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Solution

The fourth proportional to 251,927.92, 347,676.24 and 138,750.64 is: 191,484.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    251,927.92 : 347,676.24 = 138,750.64 : x
  2. Step 2: Convert to fraction form
    251,927.92/347,676.24 = 138,750.64/x
  3. Step 3: Cross multiply
    251,927.92x = 347,676.24 × 138,750.64
  4. Step 4: Simplify right side
    251,927.92x = 48,240,300,812.79
  5. Step 5: Solve for x
    x = 48,240,300,812.79/251,927.92
  6. Step 6: Final answer
    x = 191,484.54

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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.