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Finding the Fourth Proportional to 270,060.96, 405,135.36 and 83,072.64

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Solution

The fourth proportional to 270,060.96, 405,135.36 and 83,072.64 is: 124,622.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    270,060.96 : 405,135.36 = 83,072.64 : x
  2. Step 2: Convert to fraction form
    270,060.96/405,135.36 = 83,072.64/x
  3. Step 3: Cross multiply
    270,060.96x = 405,135.36 × 83,072.64
  4. Step 4: Simplify right side
    270,060.96x = 33,655,663,912.55
  5. Step 5: Solve for x
    x = 33,655,663,912.55/270,060.96
  6. Step 6: Final answer
    x = 124,622.47

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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.