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Finding the Fourth Proportional to 328,737.42, 493,155.42 and 115,467.73

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Solution

The fourth proportional to 328,737.42, 493,155.42 and 115,467.73 is: 173,218.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    328,737.42 : 493,155.42 = 115,467.73 : x
  2. Step 2: Convert to fraction form
    328,737.42/493,155.42 = 115,467.73/x
  3. Step 3: Cross multiply
    328,737.42x = 493,155.42 × 115,467.73
  4. Step 4: Simplify right side
    328,737.42x = 56,943,535,651.71
  5. Step 5: Solve for x
    x = 56,943,535,651.71/328,737.42
  6. Step 6: Final answer
    x = 173,218.90

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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.