Home / 209,272.21-313,599.55-123,794.68

Finding the Fourth Proportional to 209,272.21, 313,599.55 and 123,794.68

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Solution

The fourth proportional to 209,272.21, 313,599.55 and 123,794.68 is: 185,509.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    209,272.21 : 313,599.55 = 123,794.68 : x
  2. Step 2: Convert to fraction form
    209,272.21/313,599.55 = 123,794.68/x
  3. Step 3: Cross multiply
    209,272.21x = 313,599.55 × 123,794.68
  4. Step 4: Simplify right side
    209,272.21x = 38,821,955,667.02
  5. Step 5: Solve for x
    x = 38,821,955,667.02/209,272.21
  6. Step 6: Final answer
    x = 185,509.37

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1.5x scale

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.