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Finding the Fourth Proportional to 403,289.92, 605,308.52 and 203,750.92

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Solution

The fourth proportional to 403,289.92, 605,308.52 and 203,750.92 is: 305,815.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    403,289.92 : 605,308.52 = 203,750.92 : x
  2. Step 2: Convert to fraction form
    403,289.92/605,308.52 = 203,750.92/x
  3. Step 3: Cross multiply
    403,289.92x = 605,308.52 × 203,750.92
  4. Step 4: Simplify right side
    403,289.92x = 123,332,167,833.84
  5. Step 5: Solve for x
    x = 123,332,167,833.84/403,289.92
  6. Step 6: Final answer
    x = 305,815.15

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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.