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Finding the Fourth Proportional to 403,288.92, 605,307.02 and 203,749.92

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Solution

The fourth proportional to 403,288.92, 605,307.02 and 203,749.92 is: 305,813.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    403,288.92 : 605,307.02 = 203,749.92 : x
  2. Step 2: Convert to fraction form
    403,288.92/605,307.02 = 203,749.92/x
  3. Step 3: Cross multiply
    403,288.92x = 605,307.02 × 203,749.92
  4. Step 4: Simplify right side
    403,288.92x = 123,331,255,881.69
  5. Step 5: Solve for x
    x = 123,331,255,881.69/403,288.92
  6. Step 6: Final answer
    x = 305,813.65

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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.