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Finding the Fourth Proportional to 315,224.56, 434,992.07 and 179,291.58

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Solution

The fourth proportional to 315,224.56, 434,992.07 and 179,291.58 is: 247,412.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    315,224.56 : 434,992.07 = 179,291.58 : x
  2. Step 2: Convert to fraction form
    315,224.56/434,992.07 = 179,291.58/x
  3. Step 3: Cross multiply
    315,224.56x = 434,992.07 × 179,291.58
  4. Step 4: Simplify right side
    315,224.56x = 77,990,415,517.77
  5. Step 5: Solve for x
    x = 77,990,415,517.77/315,224.56
  6. Step 6: Final answer
    x = 247,412.24

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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.