Home / 318,938.00-440,040.29-189,772.95

Finding the Fourth Proportional to 318,938.00, 440,040.29 and 189,772.95

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Solution

The fourth proportional to 318,938.00, 440,040.29 and 189,772.95 is: 261,830.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    318,938.00 : 440,040.29 = 189,772.95 : x
  2. Step 2: Convert to fraction form
    318,938.00/440,040.29 = 189,772.95/x
  3. Step 3: Cross multiply
    318,938.00x = 440,040.29 × 189,772.95
  4. Step 4: Simplify right side
    318,938.00x = 83,507,743,003.29
  5. Step 5: Solve for x
    x = 83,507,743,003.29/318,938.00
  6. Step 6: Final answer
    x = 261,830.65

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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.