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Finding the Fourth Proportional to 296,737.28, 445,173.76 and 99,745.28

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Solution

The fourth proportional to 296,737.28, 445,173.76 and 99,745.28 is: 149,640.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    296,737.28 : 445,173.76 = 99,745.28 : x
  2. Step 2: Convert to fraction form
    296,737.28/445,173.76 = 99,745.28/x
  3. Step 3: Cross multiply
    296,737.28x = 445,173.76 × 99,745.28
  4. Step 4: Simplify right side
    296,737.28x = 44,403,981,339.85
  5. Step 5: Solve for x
    x = 44,403,981,339.85/296,737.28
  6. Step 6: Final answer
    x = 149,640.72

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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.