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Finding the Fourth Proportional to 222,822, 307,499.04 and 122,220

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Solution

The fourth proportional to 222,822, 307,499.04 and 122,220 is: 168,666.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    222,822 : 307,499.04 = 122,220 : x
  2. Step 2: Convert to fraction form
    222,822/307,499.04 = 122,220/x
  3. Step 3: Cross multiply
    222,822x = 307,499.04 × 122,220
  4. Step 4: Simplify right side
    222,822x = 37,582,532,668.80
  5. Step 5: Solve for x
    x = 37,582,532,668.80/222,822
  6. Step 6: Final answer
    x = 168,666.17

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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.