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Finding the Fourth Proportional to 236,759.54, 326,724.06 and 129,326.80

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Solution

The fourth proportional to 236,759.54, 326,724.06 and 129,326.80 is: 178,468.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    236,759.54 : 326,724.06 = 129,326.80 : x
  2. Step 2: Convert to fraction form
    236,759.54/326,724.06 = 129,326.80/x
  3. Step 3: Cross multiply
    236,759.54x = 326,724.06 × 129,326.80
  4. Step 4: Simplify right side
    236,759.54x = 42,254,177,162.81
  5. Step 5: Solve for x
    x = 42,254,177,162.81/236,759.54
  6. Step 6: Final answer
    x = 178,468.74

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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.