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Finding the Fourth Proportional to 418,257.27, 577,193.88 and 227,270.67

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Solution

The fourth proportional to 418,257.27, 577,193.88 and 227,270.67 is: 313,632.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    418,257.27 : 577,193.88 = 227,270.67 : x
  2. Step 2: Convert to fraction form
    418,257.27/577,193.88 = 227,270.67/x
  3. Step 3: Cross multiply
    418,257.27x = 577,193.88 × 227,270.67
  4. Step 4: Simplify right side
    418,257.27x = 131,179,239,827.50
  5. Step 5: Solve for x
    x = 131,179,239,827.50/418,257.27
  6. Step 6: Final answer
    x = 313,632.90

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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.