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Finding the Fourth Proportional to 403,383.58, 605,141.09 and 119,102.86

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Solution

The fourth proportional to 403,383.58, 605,141.09 and 119,102.86 is: 178,673.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    403,383.58 : 605,141.09 = 119,102.86 : x
  2. Step 2: Convert to fraction form
    403,383.58/605,141.09 = 119,102.86/x
  3. Step 3: Cross multiply
    403,383.58x = 605,141.09 × 119,102.86
  4. Step 4: Simplify right side
    403,383.58x = 72,074,036,035.37
  5. Step 5: Solve for x
    x = 72,074,036,035.37/403,383.58
  6. Step 6: Final answer
    x = 178,673.70

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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.