Home / 282,111.15-389,313.86-154,787.66

Finding the Fourth Proportional to 282,111.15, 389,313.86 and 154,787.66

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Solution

The fourth proportional to 282,111.15, 389,313.86 and 154,787.66 is: 213,607.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    282,111.15 : 389,313.86 = 154,787.66 : x
  2. Step 2: Convert to fraction form
    282,111.15/389,313.86 = 154,787.66/x
  3. Step 3: Cross multiply
    282,111.15x = 389,313.86 × 154,787.66
  4. Step 4: Simplify right side
    282,111.15x = 60,260,981,394.97
  5. Step 5: Solve for x
    x = 60,260,981,394.97/282,111.15
  6. Step 6: Final answer
    x = 213,607.23

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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.