Home / 222,325.72-306,808.86-121,723

Finding the Fourth Proportional to 222,325.72, 306,808.86 and 121,723

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Solution

The fourth proportional to 222,325.72, 306,808.86 and 121,723 is: 167,977.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    222,325.72 : 306,808.86 = 121,723 : x
  2. Step 2: Convert to fraction form
    222,325.72/306,808.86 = 121,723/x
  3. Step 3: Cross multiply
    222,325.72x = 306,808.86 × 121,723
  4. Step 4: Simplify right side
    222,325.72x = 37,345,694,865.78
  5. Step 5: Solve for x
    x = 37,345,694,865.78/222,325.72
  6. Step 6: Final answer
    x = 167,977.39

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.