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Finding the Fourth Proportional to 445,436.52, 667,837.32 and 208,650

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Solution

The fourth proportional to 445,436.52, 667,837.32 and 208,650 is: 312,826.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    445,436.52 : 667,837.32 = 208,650 : x
  2. Step 2: Convert to fraction form
    445,436.52/667,837.32 = 208,650/x
  3. Step 3: Cross multiply
    445,436.52x = 667,837.32 × 208,650
  4. Step 4: Simplify right side
    445,436.52x = 139,344,256,818
  5. Step 5: Solve for x
    x = 139,344,256,818/445,436.52
  6. Step 6: Final answer
    x = 312,826.30

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.