Home / 235,780.22-325,379.46-128,352.14

Finding the Fourth Proportional to 235,780.22, 325,379.46 and 128,352.14

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Solution

The fourth proportional to 235,780.22, 325,379.46 and 128,352.14 is: 177,127.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    235,780.22 : 325,379.46 = 128,352.14 : x
  2. Step 2: Convert to fraction form
    235,780.22/325,379.46 = 128,352.14/x
  3. Step 3: Cross multiply
    235,780.22x = 325,379.46 × 128,352.14
  4. Step 4: Simplify right side
    235,780.22x = 41,763,150,003.04
  5. Step 5: Solve for x
    x = 41,763,150,003.04/235,780.22
  6. Step 6: Final answer
    x = 177,127.45

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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.