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Finding the Fourth Proportional to 343,632.36, 515,241.38 and 154,058.46

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Solution

The fourth proportional to 343,632.36, 515,241.38 and 154,058.46 is: 230,994.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    343,632.36 : 515,241.38 = 154,058.46 : x
  2. Step 2: Convert to fraction form
    343,632.36/515,241.38 = 154,058.46/x
  3. Step 3: Cross multiply
    343,632.36x = 515,241.38 × 154,058.46
  4. Step 4: Simplify right side
    343,632.36x = 79,377,292,760.78
  5. Step 5: Solve for x
    x = 79,377,292,760.78/343,632.36
  6. Step 6: Final answer
    x = 230,994.81

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.