Home / 318,873.03-440,028.14-198,011.71

Finding the Fourth Proportional to 318,873.03, 440,028.14 and 198,011.71

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Solution

The fourth proportional to 318,873.03, 440,028.14 and 198,011.71 is: 273,245.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    318,873.03 : 440,028.14 = 198,011.71 : x
  2. Step 2: Convert to fraction form
    318,873.03/440,028.14 = 198,011.71/x
  3. Step 3: Cross multiply
    318,873.03x = 440,028.14 × 198,011.71
  4. Step 4: Simplify right side
    318,873.03x = 87,130,723,459.46
  5. Step 5: Solve for x
    x = 87,130,723,459.46/318,873.03
  6. Step 6: Final answer
    x = 273,245.83

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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.