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Finding the Fourth Proportional to 236,034.70, 325,731.60 and 128,604.70

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Solution

The fourth proportional to 236,034.70, 325,731.60 and 128,604.70 is: 177,476.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    236,034.70 : 325,731.60 = 128,604.70 : x
  2. Step 2: Convert to fraction form
    236,034.70/325,731.60 = 128,604.70/x
  3. Step 3: Cross multiply
    236,034.70x = 325,731.60 × 128,604.70
  4. Step 4: Simplify right side
    236,034.70x = 41,890,614,698.52
  5. Step 5: Solve for x
    x = 41,890,614,698.52/236,034.70
  6. Step 6: Final answer
    x = 177,476.51

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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.