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Finding the Fourth Proportional to 216,571.32, 298,859.90 and 119,768.90

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Solution

The fourth proportional to 216,571.32, 298,859.90 and 119,768.90 is: 165,276.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    216,571.32 : 298,859.90 = 119,768.90 : x
  2. Step 2: Convert to fraction form
    216,571.32/298,859.90 = 119,768.90/x
  3. Step 3: Cross multiply
    216,571.32x = 298,859.90 × 119,768.90
  4. Step 4: Simplify right side
    216,571.32x = 35,794,119,383.97
  5. Step 5: Solve for x
    x = 35,794,119,383.97/216,571.32
  6. Step 6: Final answer
    x = 165,276.36

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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.