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Finding the Fourth Proportional to 232,855, 321,339.92 and 126,871

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Solution

The fourth proportional to 232,855, 321,339.92 and 126,871 is: 175,081.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    232,855 : 321,339.92 = 126,871 : x
  2. Step 2: Convert to fraction form
    232,855/321,339.92 = 126,871/x
  3. Step 3: Cross multiply
    232,855x = 321,339.92 × 126,871
  4. Step 4: Simplify right side
    232,855x = 40,768,716,990.32
  5. Step 5: Solve for x
    x = 40,768,716,990.32/232,855
  6. Step 6: Final answer
    x = 175,081.99

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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.