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Finding the Fourth Proportional to 451,252.58, 622,745.80 and 257,691.86

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Solution

The fourth proportional to 451,252.58, 622,745.80 and 257,691.86 is: 355,624.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    451,252.58 : 622,745.80 = 257,691.86 : x
  2. Step 2: Convert to fraction form
    451,252.58/622,745.80 = 257,691.86/x
  3. Step 3: Cross multiply
    451,252.58x = 622,745.80 × 257,691.86
  4. Step 4: Simplify right side
    451,252.58x = 160,476,523,509.19
  5. Step 5: Solve for x
    x = 160,476,523,509.19/451,252.58
  6. Step 6: Final answer
    x = 355,624.61

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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.