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Finding the Fourth Proportional to 223,885.40, 335,828.10 and 129,277.40

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Solution

The fourth proportional to 223,885.40, 335,828.10 and 129,277.40 is: 193,916.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    223,885.40 : 335,828.10 = 129,277.40 : x
  2. Step 2: Convert to fraction form
    223,885.40/335,828.10 = 129,277.40/x
  3. Step 3: Cross multiply
    223,885.40x = 335,828.10 × 129,277.40
  4. Step 4: Simplify right side
    223,885.40x = 43,414,983,614.94
  5. Step 5: Solve for x
    x = 43,414,983,614.94/223,885.40
  6. Step 6: Final answer
    x = 193,916.10

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Why These Related Problems?

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