Home / 407,286.20-562,055.28-225,997.40

Finding the Fourth Proportional to 407,286.20, 562,055.28 and 225,997.40

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Solution

The fourth proportional to 407,286.20, 562,055.28 and 225,997.40 is: 311,876.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    407,286.20 : 562,055.28 = 225,997.40 : x
  2. Step 2: Convert to fraction form
    407,286.20/562,055.28 = 225,997.40/x
  3. Step 3: Cross multiply
    407,286.20x = 562,055.28 × 225,997.40
  4. Step 4: Simplify right side
    407,286.20x = 127,023,031,936.27
  5. Step 5: Solve for x
    x = 127,023,031,936.27/407,286.20
  6. Step 6: Final answer
    x = 311,876.59

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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.