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Finding the Fourth Proportional to 305,301.60, 421,341.44 and 169,379.33

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Solution

The fourth proportional to 305,301.60, 421,341.44 and 169,379.33 is: 233,757.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    305,301.60 : 421,341.44 = 169,379.33 : x
  2. Step 2: Convert to fraction form
    305,301.60/421,341.44 = 169,379.33/x
  3. Step 3: Cross multiply
    305,301.60x = 421,341.44 × 169,379.33
  4. Step 4: Simplify right side
    305,301.60x = 71,366,527,854.83
  5. Step 5: Solve for x
    x = 71,366,527,854.83/305,301.60
  6. Step 6: Final answer
    x = 233,757.46

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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.