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Finding the Fourth Proportional to 270,298.55, 372,978.60 and 149,442.20

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Solution

The fourth proportional to 270,298.55, 372,978.60 and 149,442.20 is: 206,211.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    270,298.55 : 372,978.60 = 149,442.20 : x
  2. Step 2: Convert to fraction form
    270,298.55/372,978.60 = 149,442.20/x
  3. Step 3: Cross multiply
    270,298.55x = 372,978.60 × 149,442.20
  4. Step 4: Simplify right side
    270,298.55x = 55,738,740,672.03
  5. Step 5: Solve for x
    x = 55,738,740,672.03/270,298.55
  6. Step 6: Final answer
    x = 206,211.77

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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.