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Finding the Fourth Proportional to 321,148.87, 443,153.84 and 183,329.60

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Solution

The fourth proportional to 321,148.87, 443,153.84 and 183,329.60 is: 252,976.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    321,148.87 : 443,153.84 = 183,329.60 : x
  2. Step 2: Convert to fraction form
    321,148.87/443,153.84 = 183,329.60/x
  3. Step 3: Cross multiply
    321,148.87x = 443,153.84 × 183,329.60
  4. Step 4: Simplify right side
    321,148.87x = 81,243,213,093.25
  5. Step 5: Solve for x
    x = 81,243,213,093.25/321,148.87
  6. Step 6: Final answer
    x = 252,976.80

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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.