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Finding the Fourth Proportional to 305,463.33, 421,524.81 and 169,495.65

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Solution

The fourth proportional to 305,463.33, 421,524.81 and 169,495.65 is: 233,895.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    305,463.33 : 421,524.81 = 169,495.65 : x
  2. Step 2: Convert to fraction form
    305,463.33/421,524.81 = 169,495.65/x
  3. Step 3: Cross multiply
    305,463.33x = 421,524.81 × 169,495.65
  4. Step 4: Simplify right side
    305,463.33x = 71,446,621,662.08
  5. Step 5: Solve for x
    x = 71,446,621,662.08/305,463.33
  6. Step 6: Final answer
    x = 233,895.90

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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.