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Finding the Fourth Proportional to 220,515.84, 303,690.24 and 219,824.64

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Solution

The fourth proportional to 220,515.84, 303,690.24 and 219,824.64 is: 302,738.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    220,515.84 : 303,690.24 = 219,824.64 : x
  2. Step 2: Convert to fraction form
    220,515.84/303,690.24 = 219,824.64/x
  3. Step 3: Cross multiply
    220,515.84x = 303,690.24 × 219,824.64
  4. Step 4: Simplify right side
    220,515.84x = 66,758,597,679.51
  5. Step 5: Solve for x
    x = 66,758,597,679.51/220,515.84
  6. Step 6: Final answer
    x = 302,738.33

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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.