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Finding the Fourth Proportional to 253,707.15, 380,596.26 and 103,968.73

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Solution

The fourth proportional to 253,707.15, 380,596.26 and 103,968.73 is: 155,967.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    253,707.15 : 380,596.26 = 103,968.73 : x
  2. Step 2: Convert to fraction form
    253,707.15/380,596.26 = 103,968.73/x
  3. Step 3: Cross multiply
    253,707.15x = 380,596.26 × 103,968.73
  4. Step 4: Simplify right side
    253,707.15x = 39,570,107,891.97
  5. Step 5: Solve for x
    x = 39,570,107,891.97/253,707.15
  6. Step 6: Final answer
    x = 155,967.65

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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.