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Finding the Fourth Proportional to 298,946.40, 448,419.60 and 111,933.60

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Solution

The fourth proportional to 298,946.40, 448,419.60 and 111,933.60 is: 167,900.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    298,946.40 : 448,419.60 = 111,933.60 : x
  2. Step 2: Convert to fraction form
    298,946.40/448,419.60 = 111,933.60/x
  3. Step 3: Cross multiply
    298,946.40x = 448,419.60 × 111,933.60
  4. Step 4: Simplify right side
    298,946.40x = 50,193,220,138.56
  5. Step 5: Solve for x
    x = 50,193,220,138.56/298,946.40
  6. Step 6: Final answer
    x = 167,900.40

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1.5x scale

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.