Home / 321,193.04-443,151.24-193,816.40

Finding the Fourth Proportional to 321,193.04, 443,151.24 and 193,816.40

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Solution

The fourth proportional to 321,193.04, 443,151.24 and 193,816.40 is: 267,409.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    321,193.04 : 443,151.24 = 193,816.40 : x
  2. Step 2: Convert to fraction form
    321,193.04/443,151.24 = 193,816.40/x
  3. Step 3: Cross multiply
    321,193.04x = 443,151.24 × 193,816.40
  4. Step 4: Simplify right side
    321,193.04x = 85,889,977,992.34
  5. Step 5: Solve for x
    x = 85,889,977,992.34/321,193.04
  6. Step 6: Final answer
    x = 267,409.21

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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.