Home / 328,760.16-493,134.87-104,120.25

Finding the Fourth Proportional to 328,760.16, 493,134.87 and 104,120.25

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Solution

The fourth proportional to 328,760.16, 493,134.87 and 104,120.25 is: 156,178.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    328,760.16 : 493,134.87 = 104,120.25 : x
  2. Step 2: Convert to fraction form
    328,760.16/493,134.87 = 104,120.25/x
  3. Step 3: Cross multiply
    328,760.16x = 493,134.87 × 104,120.25
  4. Step 4: Simplify right side
    328,760.16x = 51,345,325,948.12
  5. Step 5: Solve for x
    x = 51,345,325,948.12/328,760.16
  6. Step 6: Final answer
    x = 156,178.67

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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.