Home / 282,162.12-389,383.92-154,844.70

Finding the Fourth Proportional to 282,162.12, 389,383.92 and 154,844.70

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Solution

The fourth proportional to 282,162.12, 389,383.92 and 154,844.70 is: 213,685.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    282,162.12 : 389,383.92 = 154,844.70 : x
  2. Step 2: Convert to fraction form
    282,162.12/389,383.92 = 154,844.70/x
  3. Step 3: Cross multiply
    282,162.12x = 389,383.92 × 154,844.70
  4. Step 4: Simplify right side
    282,162.12x = 60,294,036,277.22
  5. Step 5: Solve for x
    x = 60,294,036,277.22/282,162.12
  6. Step 6: Final answer
    x = 213,685.79

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1.5x scale

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.