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Finding the Fourth Proportional to 270,670.49, 373,520.74 and 149,809.21

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Solution

The fourth proportional to 270,670.49, 373,520.74 and 149,809.21 is: 206,734.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    270,670.49 : 373,520.74 = 149,809.21 : x
  2. Step 2: Convert to fraction form
    270,670.49/373,520.74 = 149,809.21/x
  3. Step 3: Cross multiply
    270,670.49x = 373,520.74 × 149,809.21
  4. Step 4: Simplify right side
    270,670.49x = 55,956,846,978.02
  5. Step 5: Solve for x
    x = 55,956,846,978.02/270,670.49
  6. Step 6: Final answer
    x = 206,734.20

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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.