Home / 281,516.06-388,499.72-158,998.61

Finding the Fourth Proportional to 281,516.06, 388,499.72 and 158,998.61

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Solution

The fourth proportional to 281,516.06, 388,499.72 and 158,998.61 is: 219,422.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    281,516.06 : 388,499.72 = 158,998.61 : x
  2. Step 2: Convert to fraction form
    281,516.06/388,499.72 = 158,998.61/x
  3. Step 3: Cross multiply
    281,516.06x = 388,499.72 × 158,998.61
  4. Step 4: Simplify right side
    281,516.06x = 61,770,915,465.39
  5. Step 5: Solve for x
    x = 61,770,915,465.39/281,516.06
  6. Step 6: Final answer
    x = 219,422.35

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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.