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Finding the Fourth Proportional to 306,952.55, 423,770.09 and 203,726.73

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Solution

The fourth proportional to 306,952.55, 423,770.09 and 203,726.73 is: 281,259.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    306,952.55 : 423,770.09 = 203,726.73 : x
  2. Step 2: Convert to fraction form
    306,952.55/423,770.09 = 203,726.73/x
  3. Step 3: Cross multiply
    306,952.55x = 423,770.09 × 203,726.73
  4. Step 4: Simplify right side
    306,952.55x = 86,333,293,795.87
  5. Step 5: Solve for x
    x = 86,333,293,795.87/306,952.55
  6. Step 6: Final answer
    x = 281,259.42

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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.