Home / 251,965.08-347,712.75-138,787.56

Finding the Fourth Proportional to 251,965.08, 347,712.75 and 138,787.56

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Solution

The fourth proportional to 251,965.08, 347,712.75 and 138,787.56 is: 191,527.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    251,965.08 : 347,712.75 = 138,787.56 : x
  2. Step 2: Convert to fraction form
    251,965.08/347,712.75 = 138,787.56/x
  3. Step 3: Cross multiply
    251,965.08x = 347,712.75 × 138,787.56
  4. Step 4: Simplify right side
    251,965.08x = 48,258,204,153.39
  5. Step 5: Solve for x
    x = 48,258,204,153.39/251,965.08
  6. Step 6: Final answer
    x = 191,527.35

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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.