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Finding the Fourth Proportional to 297,099.48, 445,796.22 and 139,340.04

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Solution

The fourth proportional to 297,099.48, 445,796.22 and 139,340.04 is: 209,079.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    297,099.48 : 445,796.22 = 139,340.04 : x
  2. Step 2: Convert to fraction form
    297,099.48/445,796.22 = 139,340.04/x
  3. Step 3: Cross multiply
    297,099.48x = 445,796.22 × 139,340.04
  4. Step 4: Simplify right side
    297,099.48x = 62,117,263,126.65
  5. Step 5: Solve for x
    x = 62,117,263,126.65/297,099.48
  6. Step 6: Final answer
    x = 209,079.00

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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.