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Finding the Fourth Proportional to 253,245.33, 379,727.73 and 103,590.69

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Solution

The fourth proportional to 253,245.33, 379,727.73 and 103,590.69 is: 155,328.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    253,245.33 : 379,727.73 = 103,590.69 : x
  2. Step 2: Convert to fraction form
    253,245.33/379,727.73 = 103,590.69/x
  3. Step 3: Cross multiply
    253,245.33x = 379,727.73 × 103,590.69
  4. Step 4: Simplify right side
    253,245.33x = 39,336,257,562.83
  5. Step 5: Solve for x
    x = 39,336,257,562.83/253,245.33
  6. Step 6: Final answer
    x = 155,328.66

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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.