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Finding the Fourth Proportional to 223,447.29, 308,353.58 and 121,475.28

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Solution

The fourth proportional to 223,447.29, 308,353.58 and 121,475.28 is: 167,633.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    223,447.29 : 308,353.58 = 121,475.28 : x
  2. Step 2: Convert to fraction form
    223,447.29/308,353.58 = 121,475.28/x
  3. Step 3: Cross multiply
    223,447.29x = 308,353.58 × 121,475.28
  4. Step 4: Simplify right side
    223,447.29x = 37,457,336,862.13
  5. Step 5: Solve for x
    x = 37,457,336,862.13/223,447.29
  6. Step 6: Final answer
    x = 167,633.88

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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.