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Finding the Fourth Proportional to 308,707.36, 426,082.35 and 201,085.36

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Solution

The fourth proportional to 308,707.36, 426,082.35 and 201,085.36 is: 277,540.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    308,707.36 : 426,082.35 = 201,085.36 : x
  2. Step 2: Convert to fraction form
    308,707.36/426,082.35 = 201,085.36/x
  3. Step 3: Cross multiply
    308,707.36x = 426,082.35 × 201,085.36
  4. Step 4: Simplify right side
    308,707.36x = 85,678,922,739.40
  5. Step 5: Solve for x
    x = 85,678,922,739.40/308,707.36
  6. Step 6: Final answer
    x = 277,540.91

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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.