Home / 343,629.11-515,236.51-154,055.19

Finding the Fourth Proportional to 343,629.11, 515,236.51 and 154,055.19

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Solution

The fourth proportional to 343,629.11, 515,236.51 and 154,055.19 is: 230,989.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    343,629.11 : 515,236.51 = 154,055.19 : x
  2. Step 2: Convert to fraction form
    343,629.11/515,236.51 = 154,055.19/x
  3. Step 3: Cross multiply
    343,629.11x = 515,236.51 × 154,055.19
  4. Step 4: Simplify right side
    343,629.11x = 79,374,858,442.99
  5. Step 5: Solve for x
    x = 79,374,858,442.99/343,629.11
  6. Step 6: Final answer
    x = 230,989.91

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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.