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Finding the Fourth Proportional to 246,906.30, 370,371.60 and 128,808.30

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Solution

The fourth proportional to 246,906.30, 370,371.60 and 128,808.30 is: 193,218.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    246,906.30 : 370,371.60 = 128,808.30 : x
  2. Step 2: Convert to fraction form
    246,906.30/370,371.60 = 128,808.30/x
  3. Step 3: Cross multiply
    246,906.30x = 370,371.60 × 128,808.30
  4. Step 4: Simplify right side
    246,906.30x = 47,706,936,164.28
  5. Step 5: Solve for x
    x = 47,706,936,164.28/246,906.30
  6. Step 6: Final answer
    x = 193,218.79

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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.