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Finding the Fourth Proportional to 321,365.34, 443,476.62 and 185,399.58

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Solution

The fourth proportional to 321,365.34, 443,476.62 and 185,399.58 is: 255,847.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    321,365.34 : 443,476.62 = 185,399.58 : x
  2. Step 2: Convert to fraction form
    321,365.34/443,476.62 = 185,399.58/x
  3. Step 3: Cross multiply
    321,365.34x = 443,476.62 × 185,399.58
  4. Step 4: Simplify right side
    321,365.34x = 82,220,379,087.82
  5. Step 5: Solve for x
    x = 82,220,379,087.82/321,365.34
  6. Step 6: Final answer
    x = 255,847.07

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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.