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Finding the Fourth Proportional to 445,437.46, 667,838.87 and 208,650.97

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Solution

The fourth proportional to 445,437.46, 667,838.87 and 208,650.97 is: 312,827.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    445,437.46 : 667,838.87 = 208,650.97 : x
  2. Step 2: Convert to fraction form
    445,437.46/667,838.87 = 208,650.97/x
  3. Step 3: Cross multiply
    445,437.46x = 667,838.87 × 208,650.97
  4. Step 4: Simplify right side
    445,437.46x = 139,345,223,646.76
  5. Step 5: Solve for x
    x = 139,345,223,646.76/445,437.46
  6. Step 6: Final answer
    x = 312,827.81

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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.