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Finding the Fourth Proportional to 418,238.76, 577,173 and 227,252.15

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Solution

The fourth proportional to 418,238.76, 577,173 and 227,252.15 is: 313,609.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    418,238.76 : 577,173 = 227,252.15 : x
  2. Step 2: Convert to fraction form
    418,238.76/577,173 = 227,252.15/x
  3. Step 3: Cross multiply
    418,238.76x = 577,173 × 227,252.15
  4. Step 4: Simplify right side
    418,238.76x = 131,163,802,286.09
  5. Step 5: Solve for x
    x = 131,163,802,286.09/418,238.76
  6. Step 6: Final answer
    x = 313,609.87

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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.