Finding the Fourth Proportional to 246,661.80, 369,992.70 and 128,563.80
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Solution
The fourth proportional to 246,661.80, 369,992.70 and 128,563.80 is: 192,845.70
Step by Step Solution
- Step 1: Write the proportion equation
246,661.80 : 369,992.70 = 128,563.80 : x - Step 2: Convert to fraction form
246,661.80/369,992.70 = 128,563.80/x - Step 3: Cross multiply
246,661.80x = 369,992.70 × 128,563.80 - Step 4: Simplify right side
246,661.80x = 47,567,667,484.26 - Step 5: Solve for x
x = 47,567,667,484.26/246,661.80 - Step 6: Final answer
x = 192,845.70
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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.