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Finding the Fourth Proportional to 403,277.13, 605,289.57 and 203,738.01

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Solution

The fourth proportional to 403,277.13, 605,289.57 and 203,738.01 is: 305,795.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    403,277.13 : 605,289.57 = 203,738.01 : x
  2. Step 2: Convert to fraction form
    403,277.13/605,289.57 = 203,738.01/x
  3. Step 3: Cross multiply
    403,277.13x = 605,289.57 × 203,738.01
  4. Step 4: Simplify right side
    403,277.13x = 123,320,492,465.56
  5. Step 5: Solve for x
    x = 123,320,492,465.56/403,277.13
  6. Step 6: Final answer
    x = 305,795.90

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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.