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Finding the Fourth Proportional to 220,219.80, 308,929.80 and 220,219.80

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Solution

The fourth proportional to 220,219.80, 308,929.80 and 220,219.80 is: 308,929.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    220,219.80 : 308,929.80 = 220,219.80 : x
  2. Step 2: Convert to fraction form
    220,219.80/308,929.80 = 220,219.80/x
  3. Step 3: Cross multiply
    220,219.80x = 308,929.80 × 220,219.80
  4. Step 4: Simplify right side
    220,219.80x = 68,032,458,770.04
  5. Step 5: Solve for x
    x = 68,032,458,770.04/220,219.80
  6. Step 6: Final answer
    x = 308,929.80

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.40) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.