Home / 225,480.06-311,196.60-128,683.44

Finding the Fourth Proportional to 225,480.06, 311,196.60 and 128,683.44

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Solution

The fourth proportional to 225,480.06, 311,196.60 and 128,683.44 is: 177,602.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    225,480.06 : 311,196.60 = 128,683.44 : x
  2. Step 2: Convert to fraction form
    225,480.06/311,196.60 = 128,683.44/x
  3. Step 3: Cross multiply
    225,480.06x = 311,196.60 × 128,683.44
  4. Step 4: Simplify right side
    225,480.06x = 40,045,849,004.30
  5. Step 5: Solve for x
    x = 40,045,849,004.30/225,480.06
  6. Step 6: Final answer
    x = 177,602.62

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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.