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Finding the Fourth Proportional to 222,328.65, 306,736.87 and 125,520.42

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Solution

The fourth proportional to 222,328.65, 306,736.87 and 125,520.42 is: 173,174.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    222,328.65 : 306,736.87 = 125,520.42 : x
  2. Step 2: Convert to fraction form
    222,328.65/306,736.87 = 125,520.42/x
  3. Step 3: Cross multiply
    222,328.65x = 306,736.87 × 125,520.42
  4. Step 4: Simplify right side
    222,328.65x = 38,501,740,751.89
  5. Step 5: Solve for x
    x = 38,501,740,751.89/222,328.65
  6. Step 6: Final answer
    x = 173,174.90

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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.