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Finding the Fourth Proportional to 320,174.92, 480,510.20 and 120,676.76

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Solution

The fourth proportional to 320,174.92, 480,510.20 and 120,676.76 is: 181,108.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    320,174.92 : 480,510.20 = 120,676.76 : x
  2. Step 2: Convert to fraction form
    320,174.92/480,510.20 = 120,676.76/x
  3. Step 3: Cross multiply
    320,174.92x = 480,510.20 × 120,676.76
  4. Step 4: Simplify right side
    320,174.92x = 57,986,414,082.95
  5. Step 5: Solve for x
    x = 57,986,414,082.95/320,174.92
  6. Step 6: Final answer
    x = 181,108.55

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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.