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Finding the Fourth Proportional to 192,736.80, 289,364.40 and 122,752.80

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Solution

The fourth proportional to 192,736.80, 289,364.40 and 122,752.80 is: 184,294.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    192,736.80 : 289,364.40 = 122,752.80 : x
  2. Step 2: Convert to fraction form
    192,736.80/289,364.40 = 122,752.80/x
  3. Step 3: Cross multiply
    192,736.80x = 289,364.40 × 122,752.80
  4. Step 4: Simplify right side
    192,736.80x = 35,520,290,320.32
  5. Step 5: Solve for x
    x = 35,520,290,320.32/192,736.80
  6. Step 6: Final answer
    x = 184,294.28

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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.