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Finding the Fourth Proportional to 223,110.40, 307,892.30 and 122,508.40

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Solution

The fourth proportional to 223,110.40, 307,892.30 and 122,508.40 is: 169,061.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    223,110.40 : 307,892.30 = 122,508.40 : x
  2. Step 2: Convert to fraction form
    223,110.40/307,892.30 = 122,508.40/x
  3. Step 3: Cross multiply
    223,110.40x = 307,892.30 × 122,508.40
  4. Step 4: Simplify right side
    223,110.40x = 37,719,393,045.32
  5. Step 5: Solve for x
    x = 37,719,393,045.32/223,110.40
  6. Step 6: Final answer
    x = 169,061.56

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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.