Home / 272,145.36-408,226.20-225,127.56

Finding the Fourth Proportional to 272,145.36, 408,226.20 and 225,127.56

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Solution

The fourth proportional to 272,145.36, 408,226.20 and 225,127.56 is: 337,698.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    272,145.36 : 408,226.20 = 225,127.56 : x
  2. Step 2: Convert to fraction form
    272,145.36/408,226.20 = 225,127.56/x
  3. Step 3: Cross multiply
    272,145.36x = 408,226.20 × 225,127.56
  4. Step 4: Simplify right side
    272,145.36x = 91,902,968,334.07
  5. Step 5: Solve for x
    x = 91,902,968,334.07/272,145.36
  6. Step 6: Final answer
    x = 337,698.09

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1.5x scale

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.