Home / 209,393.32-313,970.94-142,914

Finding the Fourth Proportional to 209,393.32, 313,970.94 and 142,914

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Solution

The fourth proportional to 209,393.32, 313,970.94 and 142,914 is: 214,289.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    209,393.32 : 313,970.94 = 142,914 : x
  2. Step 2: Convert to fraction form
    209,393.32/313,970.94 = 142,914/x
  3. Step 3: Cross multiply
    209,393.32x = 313,970.94 × 142,914
  4. Step 4: Simplify right side
    209,393.32x = 44,870,842,919.16
  5. Step 5: Solve for x
    x = 44,870,842,919.16/209,393.32
  6. Step 6: Final answer
    x = 214,289.75

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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.