Home / 235,716.46-325,288.71-128,287.26

Finding the Fourth Proportional to 235,716.46, 325,288.71 and 128,287.26

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Solution

The fourth proportional to 235,716.46, 325,288.71 and 128,287.26 is: 177,036.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    235,716.46 : 325,288.71 = 128,287.26 : x
  2. Step 2: Convert to fraction form
    235,716.46/325,288.71 = 128,287.26/x
  3. Step 3: Cross multiply
    235,716.46x = 325,288.71 × 128,287.26
  4. Step 4: Simplify right side
    235,716.46x = 41,730,397,314.83
  5. Step 5: Solve for x
    x = 41,730,397,314.83/235,716.46
  6. Step 6: Final answer
    x = 177,036.42

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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.