Home / 320,450.24-480,708.32-120,938.60

Finding the Fourth Proportional to 320,450.24, 480,708.32 and 120,938.60

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Solution

The fourth proportional to 320,450.24, 480,708.32 and 120,938.60 is: 181,420.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    320,450.24 : 480,708.32 = 120,938.60 : x
  2. Step 2: Convert to fraction form
    320,450.24/480,708.32 = 120,938.60/x
  3. Step 3: Cross multiply
    320,450.24x = 480,708.32 × 120,938.60
  4. Step 4: Simplify right side
    320,450.24x = 58,136,191,229.15
  5. Step 5: Solve for x
    x = 58,136,191,229.15/320,450.24
  6. Step 6: Final answer
    x = 181,420.34

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.