Home / 293,620.78-405,177.49-172,738.71

Finding the Fourth Proportional to 293,620.78, 405,177.49 and 172,738.71

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Solution

The fourth proportional to 293,620.78, 405,177.49 and 172,738.71 is: 238,368.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    293,620.78 : 405,177.49 = 172,738.71 : x
  2. Step 2: Convert to fraction form
    293,620.78/405,177.49 = 172,738.71/x
  3. Step 3: Cross multiply
    293,620.78x = 405,177.49 × 172,738.71
  4. Step 4: Simplify right side
    293,620.78x = 69,989,836,943.64
  5. Step 5: Solve for x
    x = 69,989,836,943.64/293,620.78
  6. Step 6: Final answer
    x = 238,368.13

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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.