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Finding the Fourth Proportional to 418,441.96, 577,451.22 and 227,455.96

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Solution

The fourth proportional to 418,441.96, 577,451.22 and 227,455.96 is: 313,889.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    418,441.96 : 577,451.22 = 227,455.96 : x
  2. Step 2: Convert to fraction form
    418,441.96/577,451.22 = 227,455.96/x
  3. Step 3: Cross multiply
    418,441.96x = 577,451.22 × 227,455.96
  4. Step 4: Simplify right side
    418,441.96x = 131,344,721,598.27
  5. Step 5: Solve for x
    x = 131,344,721,598.27/418,441.96
  6. Step 6: Final answer
    x = 313,889.94

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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.