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Finding the Fourth Proportional to 222,350.12, 306,840.12 and 121,748.12

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Solution

The fourth proportional to 222,350.12, 306,840.12 and 121,748.12 is: 168,010.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    222,350.12 : 306,840.12 = 121,748.12 : x
  2. Step 2: Convert to fraction form
    222,350.12/306,840.12 = 121,748.12/x
  3. Step 3: Cross multiply
    222,350.12x = 306,840.12 × 121,748.12
  4. Step 4: Simplify right side
    222,350.12x = 37,357,207,750.57
  5. Step 5: Solve for x
    x = 37,357,207,750.57/222,350.12
  6. Step 6: Final answer
    x = 168,010.74

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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.