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Finding the Fourth Proportional to 305,752.98, 421,924.91 and 169,795.56

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Solution

The fourth proportional to 305,752.98, 421,924.91 and 169,795.56 is: 234,309.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    305,752.98 : 421,924.91 = 169,795.56 : x
  2. Step 2: Convert to fraction form
    305,752.98/421,924.91 = 169,795.56/x
  3. Step 3: Cross multiply
    305,752.98x = 421,924.91 × 169,795.56
  4. Step 4: Simplify right side
    305,752.98x = 71,640,975,522.42
  5. Step 5: Solve for x
    x = 71,640,975,522.42/305,752.98
  6. Step 6: Final answer
    x = 234,309.98

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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.