Home / 230,247.06-317,736.12-128,272.38

Finding the Fourth Proportional to 230,247.06, 317,736.12 and 128,272.38

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Solution

The fourth proportional to 230,247.06, 317,736.12 and 128,272.38 is: 177,013.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    230,247.06 : 317,736.12 = 128,272.38 : x
  2. Step 2: Convert to fraction form
    230,247.06/317,736.12 = 128,272.38/x
  3. Step 3: Cross multiply
    230,247.06x = 317,736.12 × 128,272.38
  4. Step 4: Simplify right side
    230,247.06x = 40,756,768,324.37
  5. Step 5: Solve for x
    x = 40,756,768,324.37/230,247.06
  6. Step 6: Final answer
    x = 177,013.20

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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.