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Finding the Fourth Proportional to 493,310.07, 680,767.89 and 266,955.57

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Solution

The fourth proportional to 493,310.07, 680,767.89 and 266,955.57 is: 368,398.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    493,310.07 : 680,767.89 = 266,955.57 : x
  2. Step 2: Convert to fraction form
    493,310.07/680,767.89 = 266,955.57/x
  3. Step 3: Cross multiply
    493,310.07x = 680,767.89 × 266,955.57
  4. Step 4: Simplify right side
    493,310.07x = 181,734,780,112.65
  5. Step 5: Solve for x
    x = 181,734,780,112.65/493,310.07
  6. Step 6: Final answer
    x = 368,398.68

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.