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Finding the Fourth Proportional to 305,553.69, 421,668.59 and 169,596.37

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Solution

The fourth proportional to 305,553.69, 421,668.59 and 169,596.37 is: 234,045.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    305,553.69 : 421,668.59 = 169,596.37 : x
  2. Step 2: Convert to fraction form
    305,553.69/421,668.59 = 169,596.37/x
  3. Step 3: Cross multiply
    305,553.69x = 421,668.59 × 169,596.37
  4. Step 4: Simplify right side
    305,553.69x = 71,513,461,359.04
  5. Step 5: Solve for x
    x = 71,513,461,359.04/305,553.69
  6. Step 6: Final answer
    x = 234,045.48

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1.5x scale

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.