Home / 209,745.18-314,496.27-143,265.65

Finding the Fourth Proportional to 209,745.18, 314,496.27 and 143,265.65

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Solution

The fourth proportional to 209,745.18, 314,496.27 and 143,265.65 is: 214,815.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    209,745.18 : 314,496.27 = 143,265.65 : x
  2. Step 2: Convert to fraction form
    209,745.18/314,496.27 = 143,265.65/x
  3. Step 3: Cross multiply
    209,745.18x = 314,496.27 × 143,265.65
  4. Step 4: Simplify right side
    209,745.18x = 45,056,510,971.64
  5. Step 5: Solve for x
    x = 45,056,510,971.64/209,745.18
  6. Step 6: Final answer
    x = 214,815.48

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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.