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Finding the Fourth Proportional to 321,237.36, 443,295.60 and 185,276.88

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Solution

The fourth proportional to 321,237.36, 443,295.60 and 185,276.88 is: 255,675.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    321,237.36 : 443,295.60 = 185,276.88 : x
  2. Step 2: Convert to fraction form
    321,237.36/443,295.60 = 185,276.88/x
  3. Step 3: Cross multiply
    321,237.36x = 443,295.60 × 185,276.88
  4. Step 4: Simplify right side
    321,237.36x = 82,132,425,685.73
  5. Step 5: Solve for x
    x = 82,132,425,685.73/321,237.36
  6. Step 6: Final answer
    x = 255,675.20

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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.