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Finding the Fourth Proportional to 293,277.38, 438,939.66 and 221,806.22

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Solution

The fourth proportional to 293,277.38, 438,939.66 and 221,806.22 is: 331,970.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    293,277.38 : 438,939.66 = 221,806.22 : x
  2. Step 2: Convert to fraction form
    293,277.38/438,939.66 = 221,806.22/x
  3. Step 3: Cross multiply
    293,277.38x = 438,939.66 × 221,806.22
  4. Step 4: Simplify right side
    293,277.38x = 97,359,544,182.10
  5. Step 5: Solve for x
    x = 97,359,544,182.10/293,277.38
  6. Step 6: Final answer
    x = 331,970.87

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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.