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Finding the Fourth Proportional to 223,741.63, 308,777.24 and 128,262.69

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Solution

The fourth proportional to 223,741.63, 308,777.24 and 128,262.69 is: 177,010.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    223,741.63 : 308,777.24 = 128,262.69 : x
  2. Step 2: Convert to fraction form
    223,741.63/308,777.24 = 128,262.69/x
  3. Step 3: Cross multiply
    223,741.63x = 308,777.24 × 128,262.69
  4. Step 4: Simplify right side
    223,741.63x = 39,604,599,413.18
  5. Step 5: Solve for x
    x = 39,604,599,413.18/223,741.63
  6. Step 6: Final answer
    x = 177,010.42

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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.