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Finding the Fourth Proportional to 309,194.36, 426,733.32 and 173,237.54

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Solution

The fourth proportional to 309,194.36, 426,733.32 and 173,237.54 is: 239,093.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    309,194.36 : 426,733.32 = 173,237.54 : x
  2. Step 2: Convert to fraction form
    309,194.36/426,733.32 = 173,237.54/x
  3. Step 3: Cross multiply
    309,194.36x = 426,733.32 × 173,237.54
  4. Step 4: Simplify right side
    309,194.36x = 73,926,230,592.83
  5. Step 5: Solve for x
    x = 73,926,230,592.83/309,194.36
  6. Step 6: Final answer
    x = 239,093.08

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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.