Home / 266,765.21-368,144.79-145,906.50

Finding the Fourth Proportional to 266,765.21, 368,144.79 and 145,906.50

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Solution

The fourth proportional to 266,765.21, 368,144.79 and 145,906.50 is: 201,355.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    266,765.21 : 368,144.79 = 145,906.50 : x
  2. Step 2: Convert to fraction form
    266,765.21/368,144.79 = 145,906.50/x
  3. Step 3: Cross multiply
    266,765.21x = 368,144.79 × 145,906.50
  4. Step 4: Simplify right side
    266,765.21x = 53,714,718,835.96
  5. Step 5: Solve for x
    x = 53,714,718,835.96/266,765.21
  6. Step 6: Final answer
    x = 201,355.79

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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.