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Finding the Fourth Proportional to 381,933, 526,848.26 and 238,443.94

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Solution

The fourth proportional to 381,933, 526,848.26 and 238,443.94 is: 328,915.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    381,933 : 526,848.26 = 238,443.94 : x
  2. Step 2: Convert to fraction form
    381,933/526,848.26 = 238,443.94/x
  3. Step 3: Cross multiply
    381,933x = 526,848.26 × 238,443.94
  4. Step 4: Simplify right side
    381,933x = 125,623,774,896.54
  5. Step 5: Solve for x
    x = 125,623,774,896.54/381,933
  6. Step 6: Final answer
    x = 328,915.74

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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.