Home / 209,321.40-313,982.10-190,950.60

Finding the Fourth Proportional to 209,321.40, 313,982.10 and 190,950.60

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Solution

The fourth proportional to 209,321.40, 313,982.10 and 190,950.60 is: 286,425.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    209,321.40 : 313,982.10 = 190,950.60 : x
  2. Step 2: Convert to fraction form
    209,321.40/313,982.10 = 190,950.60/x
  3. Step 3: Cross multiply
    209,321.40x = 313,982.10 × 190,950.60
  4. Step 4: Simplify right side
    209,321.40x = 59,955,070,384.26
  5. Step 5: Solve for x
    x = 59,955,070,384.26/209,321.40
  6. Step 6: Final answer
    x = 286,425.90

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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.