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Finding the Fourth Proportional to 239,046.32, 358,455.11 and 139,234.98

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Solution

The fourth proportional to 239,046.32, 358,455.11 and 139,234.98 is: 208,785.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    239,046.32 : 358,455.11 = 139,234.98 : x
  2. Step 2: Convert to fraction form
    239,046.32/358,455.11 = 139,234.98/x
  3. Step 3: Cross multiply
    239,046.32x = 358,455.11 × 139,234.98
  4. Step 4: Simplify right side
    239,046.32x = 49,909,489,375.57
  5. Step 5: Solve for x
    x = 49,909,489,375.57/239,046.32
  6. Step 6: Final answer
    x = 208,785.86

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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.