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Finding the Fourth Proportional to 223,631.96, 308,726.37 and 172,529.96

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Solution

The fourth proportional to 223,631.96, 308,726.37 and 172,529.96 is: 238,179.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    223,631.96 : 308,726.37 = 172,529.96 : x
  2. Step 2: Convert to fraction form
    223,631.96/308,726.37 = 172,529.96/x
  3. Step 3: Cross multiply
    223,631.96x = 308,726.37 × 172,529.96
  4. Step 4: Simplify right side
    223,631.96x = 53,264,546,723.41
  5. Step 5: Solve for x
    x = 53,264,546,723.41/223,631.96
  6. Step 6: Final answer
    x = 238,179.50

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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.