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Finding the Fourth Proportional to 223,000.49, 307,735.61 and 121,026.15

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Solution

The fourth proportional to 223,000.49, 307,735.61 and 121,026.15 is: 167,013.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    223,000.49 : 307,735.61 = 121,026.15 : x
  2. Step 2: Convert to fraction form
    223,000.49/307,735.61 = 121,026.15/x
  3. Step 3: Cross multiply
    223,000.49x = 307,735.61 × 121,026.15
  4. Step 4: Simplify right side
    223,000.49x = 37,244,055,491.07
  5. Step 5: Solve for x
    x = 37,244,055,491.07/223,000.49
  6. Step 6: Final answer
    x = 167,013.33

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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.