Home / 320,172.92-480,507.20-120,674.76

Finding the Fourth Proportional to 320,172.92, 480,507.20 and 120,674.76

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Solution

The fourth proportional to 320,172.92, 480,507.20 and 120,674.76 is: 181,105.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    320,172.92 : 480,507.20 = 120,674.76 : x
  2. Step 2: Convert to fraction form
    320,172.92/480,507.20 = 120,674.76/x
  3. Step 3: Cross multiply
    320,172.92x = 480,507.20 × 120,674.76
  4. Step 4: Simplify right side
    320,172.92x = 57,985,091,038.27
  5. Step 5: Solve for x
    x = 57,985,091,038.27/320,172.92
  6. Step 6: Final answer
    x = 181,105.54

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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.