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Finding the Fourth Proportional to 236,098.88, 325,812.32 and 128,669.84

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Solution

The fourth proportional to 236,098.88, 325,812.32 and 128,669.84 is: 177,562.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    236,098.88 : 325,812.32 = 128,669.84 : x
  2. Step 2: Convert to fraction form
    236,098.88/325,812.32 = 128,669.84/x
  3. Step 3: Cross multiply
    236,098.88x = 325,812.32 × 128,669.84
  4. Step 4: Simplify right side
    236,098.88x = 41,922,219,084.43
  5. Step 5: Solve for x
    x = 41,922,219,084.43/236,098.88
  6. Step 6: Final answer
    x = 177,562.13

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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.