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Finding the Fourth Proportional to 222,343.12, 306,830.46 and 121,741.12

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Solution

The fourth proportional to 222,343.12, 306,830.46 and 121,741.12 is: 168,001.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    222,343.12 : 306,830.46 = 121,741.12 : x
  2. Step 2: Convert to fraction form
    222,343.12/306,830.46 = 121,741.12/x
  3. Step 3: Cross multiply
    222,343.12x = 306,830.46 × 121,741.12
  4. Step 4: Simplify right side
    222,343.12x = 37,353,883,850.52
  5. Step 5: Solve for x
    x = 37,353,883,850.52/222,343.12
  6. Step 6: Final answer
    x = 168,001.08

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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.