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Finding the Fourth Proportional to 298,910.40, 448,365.60 and 192,622.20

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Solution

The fourth proportional to 298,910.40, 448,365.60 and 192,622.20 is: 288,933.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    298,910.40 : 448,365.60 = 192,622.20 : x
  2. Step 2: Convert to fraction form
    298,910.40/448,365.60 = 192,622.20/x
  3. Step 3: Cross multiply
    298,910.40x = 448,365.60 × 192,622.20
  4. Step 4: Simplify right side
    298,910.40x = 86,365,168,276.32
  5. Step 5: Solve for x
    x = 86,365,168,276.32/298,910.40
  6. Step 6: Final answer
    x = 288,933.30

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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.