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Finding the Fourth Proportional to 223,495.38, 308,379.45 and 125,381.94

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Solution

The fourth proportional to 223,495.38, 308,379.45 and 125,381.94 is: 173,002.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    223,495.38 : 308,379.45 = 125,381.94 : x
  2. Step 2: Convert to fraction form
    223,495.38/308,379.45 = 125,381.94/x
  3. Step 3: Cross multiply
    223,495.38x = 308,379.45 × 125,381.94
  4. Step 4: Simplify right side
    223,495.38x = 38,665,213,697.13
  5. Step 5: Solve for x
    x = 38,665,213,697.13/223,495.38
  6. Step 6: Final answer
    x = 173,002.30

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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.