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Finding the Fourth Proportional to 511,059.40, 766,880.70 and 195,742.60

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Solution

The fourth proportional to 511,059.40, 766,880.70 and 195,742.60 is: 293,725.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    511,059.40 : 766,880.70 = 195,742.60 : x
  2. Step 2: Convert to fraction form
    511,059.40/766,880.70 = 195,742.60/x
  3. Step 3: Cross multiply
    511,059.40x = 766,880.70 × 195,742.60
  4. Step 4: Simplify right side
    511,059.40x = 150,111,222,107.82
  5. Step 5: Solve for x
    x = 150,111,222,107.82/511,059.40
  6. Step 6: Final answer
    x = 293,725.59

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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.