Home / 293,743.26-405,356.40-172,856.70

Finding the Fourth Proportional to 293,743.26, 405,356.40 and 172,856.70

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Solution

The fourth proportional to 293,743.26, 405,356.40 and 172,856.70 is: 238,536.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    293,743.26 : 405,356.40 = 172,856.70 : x
  2. Step 2: Convert to fraction form
    293,743.26/405,356.40 = 172,856.70/x
  3. Step 3: Cross multiply
    293,743.26x = 405,356.40 × 172,856.70
  4. Step 4: Simplify right side
    293,743.26x = 70,068,569,627.88
  5. Step 5: Solve for x
    x = 70,068,569,627.88/293,743.26
  6. Step 6: Final answer
    x = 238,536.77

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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.