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Finding the Fourth Proportional to 305,556.84, 421,662.08 and 169,582.82

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Solution

The fourth proportional to 305,556.84, 421,662.08 and 169,582.82 is: 234,020.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    305,556.84 : 421,662.08 = 169,582.82 : x
  2. Step 2: Convert to fraction form
    305,556.84/421,662.08 = 169,582.82/x
  3. Step 3: Cross multiply
    305,556.84x = 421,662.08 × 169,582.82
  4. Step 4: Simplify right side
    305,556.84x = 71,506,644,613.47
  5. Step 5: Solve for x
    x = 71,506,644,613.47/305,556.84
  6. Step 6: Final answer
    x = 234,020.76

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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.