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Finding the Fourth Proportional to 223,358, 308,234.04 and 122,756

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Solution

The fourth proportional to 223,358, 308,234.04 and 122,756 is: 169,403.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    223,358 : 308,234.04 = 122,756 : x
  2. Step 2: Convert to fraction form
    223,358/308,234.04 = 122,756/x
  3. Step 3: Cross multiply
    223,358x = 308,234.04 × 122,756
  4. Step 4: Simplify right side
    223,358x = 37,837,577,814.24
  5. Step 5: Solve for x
    x = 37,837,577,814.24/223,358
  6. Step 6: Final answer
    x = 169,403.28

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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.