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Finding the Fourth Proportional to 236,228.84, 325,989.90 and 128,800.97

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Solution

The fourth proportional to 236,228.84, 325,989.90 and 128,800.97 is: 177,742.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    236,228.84 : 325,989.90 = 128,800.97 : x
  2. Step 2: Convert to fraction form
    236,228.84/325,989.90 = 128,800.97/x
  3. Step 3: Cross multiply
    236,228.84x = 325,989.90 × 128,800.97
  4. Step 4: Simplify right side
    236,228.84x = 41,987,814,922.72
  5. Step 5: Solve for x
    x = 41,987,814,922.72/236,228.84
  6. Step 6: Final answer
    x = 177,742.12

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1.5x scale

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.