Home / 446,921.82-670,382.46-131,378.76

Finding the Fourth Proportional to 446,921.82, 670,382.46 and 131,378.76

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Solution

The fourth proportional to 446,921.82, 670,382.46 and 131,378.76 is: 197,068.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    446,921.82 : 670,382.46 = 131,378.76 : x
  2. Step 2: Convert to fraction form
    446,921.82/670,382.46 = 131,378.76/x
  3. Step 3: Cross multiply
    446,921.82x = 670,382.46 × 131,378.76
  4. Step 4: Simplify right side
    446,921.82x = 88,074,016,320.55
  5. Step 5: Solve for x
    x = 88,074,016,320.55/446,921.82
  6. Step 6: Final answer
    x = 197,068.06

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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.