Home / 222,213.30-306,653.35-120,240.55

Finding the Fourth Proportional to 222,213.30, 306,653.35 and 120,240.55

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Solution

The fourth proportional to 222,213.30, 306,653.35 and 120,240.55 is: 165,931.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    222,213.30 : 306,653.35 = 120,240.55 : x
  2. Step 2: Convert to fraction form
    222,213.30/306,653.35 = 120,240.55/x
  3. Step 3: Cross multiply
    222,213.30x = 306,653.35 × 120,240.55
  4. Step 4: Simplify right side
    222,213.30x = 36,872,167,463.34
  5. Step 5: Solve for x
    x = 36,872,167,463.34/222,213.30
  6. Step 6: Final answer
    x = 165,931.42

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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.