Home / 410,643.24-615,986.94-130,182.36

Finding the Fourth Proportional to 410,643.24, 615,986.94 and 130,182.36

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Solution

The fourth proportional to 410,643.24, 615,986.94 and 130,182.36 is: 195,280.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    410,643.24 : 615,986.94 = 130,182.36 : x
  2. Step 2: Convert to fraction form
    410,643.24/615,986.94 = 130,182.36/x
  3. Step 3: Cross multiply
    410,643.24x = 615,986.94 × 130,182.36
  4. Step 4: Simplify right side
    410,643.24x = 80,190,633,578.38
  5. Step 5: Solve for x
    x = 80,190,633,578.38/410,643.24
  6. Step 6: Final answer
    x = 195,280.54

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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.