Home / 320,541.70-442,208.55-193,144.90

Finding the Fourth Proportional to 320,541.70, 442,208.55 and 193,144.90

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Solution

The fourth proportional to 320,541.70, 442,208.55 and 193,144.90 is: 266,456.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    320,541.70 : 442,208.55 = 193,144.90 : x
  2. Step 2: Convert to fraction form
    320,541.70/442,208.55 = 193,144.90/x
  3. Step 3: Cross multiply
    320,541.70x = 442,208.55 × 193,144.90
  4. Step 4: Simplify right side
    320,541.70x = 85,410,326,168.90
  5. Step 5: Solve for x
    x = 85,410,326,168.90/320,541.70
  6. Step 6: Final answer
    x = 266,456.21

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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.