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Finding the Fourth Proportional to 270,234.72, 372,960.96 and 155,511.03

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Solution

The fourth proportional to 270,234.72, 372,960.96 and 155,511.03 is: 214,626.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    270,234.72 : 372,960.96 = 155,511.03 : x
  2. Step 2: Convert to fraction form
    270,234.72/372,960.96 = 155,511.03/x
  3. Step 3: Cross multiply
    270,234.72x = 372,960.96 × 155,511.03
  4. Step 4: Simplify right side
    270,234.72x = 57,999,543,039.39
  5. Step 5: Solve for x
    x = 57,999,543,039.39/270,234.72
  6. Step 6: Final answer
    x = 214,626.54

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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.