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Finding the Fourth Proportional to 445,438.50, 667,840.32 and 208,652.04

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Solution

The fourth proportional to 445,438.50, 667,840.32 and 208,652.04 is: 312,829.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    445,438.50 : 667,840.32 = 208,652.04 : x
  2. Step 2: Convert to fraction form
    445,438.50/667,840.32 = 208,652.04/x
  3. Step 3: Cross multiply
    445,438.50x = 667,840.32 × 208,652.04
  4. Step 4: Simplify right side
    445,438.50x = 139,346,245,162.25
  5. Step 5: Solve for x
    x = 139,346,245,162.25/445,438.50
  6. Step 6: Final answer
    x = 312,829.37

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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.