Home / 232,208-320,395.20-136,718.72

Finding the Fourth Proportional to 232,208, 320,395.20 and 136,718.72

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Solution

The fourth proportional to 232,208, 320,395.20 and 136,718.72 is: 188,641.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    232,208 : 320,395.20 = 136,718.72 : x
  2. Step 2: Convert to fraction form
    232,208/320,395.20 = 136,718.72/x
  3. Step 3: Cross multiply
    232,208x = 320,395.20 × 136,718.72
  4. Step 4: Simplify right side
    232,208x = 43,804,021,638.14
  5. Step 5: Solve for x
    x = 43,804,021,638.14/232,208
  6. Step 6: Final answer
    x = 188,641.31

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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.