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Finding the Fourth Proportional to 192,492.77, 288,788.36 and 80,135.64

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Solution

The fourth proportional to 192,492.77, 288,788.36 and 80,135.64 is: 120,223.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    192,492.77 : 288,788.36 = 80,135.64 : x
  2. Step 2: Convert to fraction form
    192,492.77/288,788.36 = 80,135.64/x
  3. Step 3: Cross multiply
    192,492.77x = 288,788.36 × 80,135.64
  4. Step 4: Simplify right side
    192,492.77x = 23,142,239,652.47
  5. Step 5: Solve for x
    x = 23,142,239,652.47/192,492.77
  6. Step 6: Final answer
    x = 120,223.95

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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.