Home / 321,315.44-443,313.98-185,331.15

Finding the Fourth Proportional to 321,315.44, 443,313.98 and 185,331.15

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Solution

The fourth proportional to 321,315.44, 443,313.98 and 185,331.15 is: 255,698.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    321,315.44 : 443,313.98 = 185,331.15 : x
  2. Step 2: Convert to fraction form
    321,315.44/443,313.98 = 185,331.15/x
  3. Step 3: Cross multiply
    321,315.44x = 443,313.98 × 185,331.15
  4. Step 4: Simplify right side
    321,315.44x = 82,159,889,492.81
  5. Step 5: Solve for x
    x = 82,159,889,492.81/321,315.44
  6. Step 6: Final answer
    x = 255,698.55

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.