Home / 208,211.82-312,442.16-191,272.14

Finding the Fourth Proportional to 208,211.82, 312,442.16 and 191,272.14

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Solution

The fourth proportional to 208,211.82, 312,442.16 and 191,272.14 is: 287,022.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    208,211.82 : 312,442.16 = 191,272.14 : x
  2. Step 2: Convert to fraction form
    208,211.82/312,442.16 = 191,272.14/x
  3. Step 3: Cross multiply
    208,211.82x = 312,442.16 × 191,272.14
  4. Step 4: Simplify right side
    208,211.82x = 59,761,479,613.06
  5. Step 5: Solve for x
    x = 59,761,479,613.06/208,211.82
  6. Step 6: Final answer
    x = 287,022.51

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.