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Finding the Fourth Proportional to 300,632.31, 450,959.40 and 100,959.21

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Solution

The fourth proportional to 300,632.31, 450,959.40 and 100,959.21 is: 151,442.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    300,632.31 : 450,959.40 = 100,959.21 : x
  2. Step 2: Convert to fraction form
    300,632.31/450,959.40 = 100,959.21/x
  3. Step 3: Cross multiply
    300,632.31x = 450,959.40 × 100,959.21
  4. Step 4: Simplify right side
    300,632.31x = 45,528,504,766.07
  5. Step 5: Solve for x
    x = 45,528,504,766.07/300,632.31
  6. Step 6: Final answer
    x = 151,442.49

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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.