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Finding the Fourth Proportional to 297,098.48, 445,794.72 and 139,339.04

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Solution

The fourth proportional to 297,098.48, 445,794.72 and 139,339.04 is: 209,077.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    297,098.48 : 445,794.72 = 139,339.04 : x
  2. Step 2: Convert to fraction form
    297,098.48/445,794.72 = 139,339.04/x
  3. Step 3: Cross multiply
    297,098.48x = 445,794.72 × 139,339.04
  4. Step 4: Simplify right side
    297,098.48x = 62,116,608,321.87
  5. Step 5: Solve for x
    x = 62,116,608,321.87/297,098.48
  6. Step 6: Final answer
    x = 209,077.50

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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.