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Finding the Fourth Proportional to 223,875.56, 308,955.82 and 121,904.96

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Solution

The fourth proportional to 223,875.56, 308,955.82 and 121,904.96 is: 168,232.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    223,875.56 : 308,955.82 = 121,904.96 : x
  2. Step 2: Convert to fraction form
    223,875.56/308,955.82 = 121,904.96/x
  3. Step 3: Cross multiply
    223,875.56x = 308,955.82 × 121,904.96
  4. Step 4: Simplify right side
    223,875.56x = 37,663,246,878.87
  5. Step 5: Solve for x
    x = 37,663,246,878.87/223,875.56
  6. Step 6: Final answer
    x = 168,232.95

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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.