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Finding the Fourth Proportional to 418,055.28, 576,906.72 and 227,064.48

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Solution

The fourth proportional to 418,055.28, 576,906.72 and 227,064.48 is: 313,343.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    418,055.28 : 576,906.72 = 227,064.48 : x
  2. Step 2: Convert to fraction form
    418,055.28/576,906.72 = 227,064.48/x
  3. Step 3: Cross multiply
    418,055.28x = 576,906.72 × 227,064.48
  4. Step 4: Simplify right side
    418,055.28x = 130,995,024,385.31
  5. Step 5: Solve for x
    x = 130,995,024,385.31/418,055.28
  6. Step 6: Final answer
    x = 313,343.79

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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.