Home / 412,288.20-618,432.30-202,336.20

Finding the Fourth Proportional to 412,288.20, 618,432.30 and 202,336.20

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Solution

The fourth proportional to 412,288.20, 618,432.30 and 202,336.20 is: 303,504.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    412,288.20 : 618,432.30 = 202,336.20 : x
  2. Step 2: Convert to fraction form
    412,288.20/618,432.30 = 202,336.20/x
  3. Step 3: Cross multiply
    412,288.20x = 618,432.30 × 202,336.20
  4. Step 4: Simplify right side
    412,288.20x = 125,131,241,539.26
  5. Step 5: Solve for x
    x = 125,131,241,539.26/412,288.20
  6. Step 6: Final answer
    x = 303,504.30

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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.