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Finding the Fourth Proportional to 303,747.37, 419,172.74 and 165,928.20

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Solution

The fourth proportional to 303,747.37, 419,172.74 and 165,928.20 is: 228,981.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    303,747.37 : 419,172.74 = 165,928.20 : x
  2. Step 2: Convert to fraction form
    303,747.37/419,172.74 = 165,928.20/x
  3. Step 3: Cross multiply
    303,747.37x = 419,172.74 × 165,928.20
  4. Step 4: Simplify right side
    303,747.37x = 69,552,576,457.96
  5. Step 5: Solve for x
    x = 69,552,576,457.96/303,747.37
  6. Step 6: Final answer
    x = 228,981.66

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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.