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Finding the Fourth Proportional to 236,164.64, 325,900.68 and 128,736.76

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Solution

The fourth proportional to 236,164.64, 325,900.68 and 128,736.76 is: 177,653.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    236,164.64 : 325,900.68 = 128,736.76 : x
  2. Step 2: Convert to fraction form
    236,164.64/325,900.68 = 128,736.76/x
  3. Step 3: Cross multiply
    236,164.64x = 325,900.68 × 128,736.76
  4. Step 4: Simplify right side
    236,164.64x = 41,955,397,625.00
  5. Step 5: Solve for x
    x = 41,955,397,625.00/236,164.64
  6. Step 6: Final answer
    x = 177,653.17

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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.