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Finding the Fourth Proportional to 372,134.45, 513,660.69 and 276,770.32

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Solution

The fourth proportional to 372,134.45, 513,660.69 and 276,770.32 is: 382,028.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    372,134.45 : 513,660.69 = 276,770.32 : x
  2. Step 2: Convert to fraction form
    372,134.45/513,660.69 = 276,770.32/x
  3. Step 3: Cross multiply
    372,134.45x = 513,660.69 × 276,770.32
  4. Step 4: Simplify right side
    372,134.45x = 142,166,032,258.57
  5. Step 5: Solve for x
    x = 142,166,032,258.57/372,134.45
  6. Step 6: Final answer
    x = 382,028.68

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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.