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Finding the Fourth Proportional to 222,074.10, 306,445.41 and 121,472.10

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Solution

The fourth proportional to 222,074.10, 306,445.41 and 121,472.10 is: 167,622.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    222,074.10 : 306,445.41 = 121,472.10 : x
  2. Step 2: Convert to fraction form
    222,074.10/306,445.41 = 121,472.10/x
  3. Step 3: Cross multiply
    222,074.10x = 306,445.41 × 121,472.10
  4. Step 4: Simplify right side
    222,074.10x = 37,224,567,488.06
  5. Step 5: Solve for x
    x = 37,224,567,488.06/222,074.10
  6. Step 6: Final answer
    x = 167,622.28

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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.