Home / 209,829.20-314,743.80-189,093.20

Finding the Fourth Proportional to 209,829.20, 314,743.80 and 189,093.20

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Solution

The fourth proportional to 209,829.20, 314,743.80 and 189,093.20 is: 283,639.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    209,829.20 : 314,743.80 = 189,093.20 : x
  2. Step 2: Convert to fraction form
    209,829.20/314,743.80 = 189,093.20/x
  3. Step 3: Cross multiply
    209,829.20x = 314,743.80 × 189,093.20
  4. Step 4: Simplify right side
    209,829.20x = 59,515,912,322.16
  5. Step 5: Solve for x
    x = 59,515,912,322.16/209,829.20
  6. Step 6: Final answer
    x = 283,639.80

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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.