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Finding the Fourth Proportional to 203,670.92, 305,407.63 and 119,458.60

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Solution

The fourth proportional to 203,670.92, 305,407.63 and 119,458.60 is: 179,129.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    203,670.92 : 305,407.63 = 119,458.60 : x
  2. Step 2: Convert to fraction form
    203,670.92/305,407.63 = 119,458.60/x
  3. Step 3: Cross multiply
    203,670.92x = 305,407.63 × 119,458.60
  4. Step 4: Simplify right side
    203,670.92x = 36,483,567,294.92
  5. Step 5: Solve for x
    x = 36,483,567,294.92/203,670.92
  6. Step 6: Final answer
    x = 179,129.98

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.