Home / 222,261.85-306,720.75-120,287.53

Finding the Fourth Proportional to 222,261.85, 306,720.75 and 120,287.53

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Solution

The fourth proportional to 222,261.85, 306,720.75 and 120,287.53 is: 165,996.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    222,261.85 : 306,720.75 = 120,287.53 : x
  2. Step 2: Convert to fraction form
    222,261.85/306,720.75 = 120,287.53/x
  3. Step 3: Cross multiply
    222,261.85x = 306,720.75 × 120,287.53
  4. Step 4: Simplify right side
    222,261.85x = 36,894,681,417.25
  5. Step 5: Solve for x
    x = 36,894,681,417.25/222,261.85
  6. Step 6: Final answer
    x = 165,996.47

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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.