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Finding the Fourth Proportional to 303,972.05, 419,503.14 and 168,003.07

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Solution

The fourth proportional to 303,972.05, 419,503.14 and 168,003.07 is: 231,856.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    303,972.05 : 419,503.14 = 168,003.07 : x
  2. Step 2: Convert to fraction form
    303,972.05/419,503.14 = 168,003.07/x
  3. Step 3: Cross multiply
    303,972.05x = 419,503.14 × 168,003.07
  4. Step 4: Simplify right side
    303,972.05x = 70,477,814,345.88
  5. Step 5: Solve for x
    x = 70,477,814,345.88/303,972.05
  6. Step 6: Final answer
    x = 231,856.24

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1.5x scale

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.