Home / 281,368.03-388,324.86-160,481.61

Finding the Fourth Proportional to 281,368.03, 388,324.86 and 160,481.61

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Solution

The fourth proportional to 281,368.03, 388,324.86 and 160,481.61 is: 221,485.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    281,368.03 : 388,324.86 = 160,481.61 : x
  2. Step 2: Convert to fraction form
    281,368.03/388,324.86 = 160,481.61/x
  3. Step 3: Cross multiply
    281,368.03x = 388,324.86 × 160,481.61
  4. Step 4: Simplify right side
    281,368.03x = 62,318,998,735.82
  5. Step 5: Solve for x
    x = 62,318,998,735.82/281,368.03
  6. Step 6: Final answer
    x = 221,485.71

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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.