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Finding the Fourth Proportional to 381,806.64, 526,541.04 and 259,481.52

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Solution

The fourth proportional to 381,806.64, 526,541.04 and 259,481.52 is: 357,845.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    381,806.64 : 526,541.04 = 259,481.52 : x
  2. Step 2: Convert to fraction form
    381,806.64/526,541.04 = 259,481.52/x
  3. Step 3: Cross multiply
    381,806.64x = 526,541.04 × 259,481.52
  4. Step 4: Simplify right side
    381,806.64x = 136,627,669,401.58
  5. Step 5: Solve for x
    x = 136,627,669,401.58/381,806.64
  6. Step 6: Final answer
    x = 357,845.19

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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.