Home / 222,023.34-306,399.51-121,421.34

Finding the Fourth Proportional to 222,023.34, 306,399.51 and 121,421.34

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Solution

The fourth proportional to 222,023.34, 306,399.51 and 121,421.34 is: 167,565.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    222,023.34 : 306,399.51 = 121,421.34 : x
  2. Step 2: Convert to fraction form
    222,023.34/306,399.51 = 121,421.34/x
  3. Step 3: Cross multiply
    222,023.34x = 306,399.51 × 121,421.34
  4. Step 4: Simplify right side
    222,023.34x = 37,203,439,079.54
  5. Step 5: Solve for x
    x = 37,203,439,079.54/222,023.34
  6. Step 6: Final answer
    x = 167,565.44

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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.