Home / 281,575.03-388,466.32-208,163.71

Finding the Fourth Proportional to 281,575.03, 388,466.32 and 208,163.71

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Solution

The fourth proportional to 281,575.03, 388,466.32 and 208,163.71 is: 287,186.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    281,575.03 : 388,466.32 = 208,163.71 : x
  2. Step 2: Convert to fraction form
    281,575.03/388,466.32 = 208,163.71/x
  3. Step 3: Cross multiply
    281,575.03x = 388,466.32 × 208,163.71
  4. Step 4: Simplify right side
    281,575.03x = 80,864,591,412.09
  5. Step 5: Solve for x
    x = 80,864,591,412.09/281,575.03
  6. Step 6: Final answer
    x = 287,186.66

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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.