Home / 444,250.20-666,375.30-128,717.40

Finding the Fourth Proportional to 444,250.20, 666,375.30 and 128,717.40

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Solution

The fourth proportional to 444,250.20, 666,375.30 and 128,717.40 is: 193,076.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    444,250.20 : 666,375.30 = 128,717.40 : x
  2. Step 2: Convert to fraction form
    444,250.20/666,375.30 = 128,717.40/x
  3. Step 3: Cross multiply
    444,250.20x = 666,375.30 × 128,717.40
  4. Step 4: Simplify right side
    444,250.20x = 85,774,096,040.22
  5. Step 5: Solve for x
    x = 85,774,096,040.22/444,250.20
  6. Step 6: Final answer
    x = 193,076.10

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.