Home / 321,421.18-443,557.74-185,453.50

Finding the Fourth Proportional to 321,421.18, 443,557.74 and 185,453.50

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Solution

The fourth proportional to 321,421.18, 443,557.74 and 185,453.50 is: 255,923.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    321,421.18 : 443,557.74 = 185,453.50 : x
  2. Step 2: Convert to fraction form
    321,421.18/443,557.74 = 185,453.50/x
  3. Step 3: Cross multiply
    321,421.18x = 443,557.74 × 185,453.50
  4. Step 4: Simplify right side
    321,421.18x = 82,259,335,335.09
  5. Step 5: Solve for x
    x = 82,259,335,335.09/321,421.18
  6. Step 6: Final answer
    x = 255,923.82

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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.