Finding the Fourth Proportional to 236,991.94, 355,449.36 and 79,220.14
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Solution
The fourth proportional to 236,991.94, 355,449.36 and 79,220.14 is: 118,817.32
Step by Step Solution
- Step 1: Write the proportion equation
236,991.94 : 355,449.36 = 79,220.14 : x - Step 2: Convert to fraction form
236,991.94/355,449.36 = 79,220.14/x - Step 3: Cross multiply
236,991.94x = 355,449.36 × 79,220.14 - Step 4: Simplify right side
236,991.94x = 28,158,748,062.11 - Step 5: Solve for x
x = 28,158,748,062.11/236,991.94 - Step 6: Final answer
x = 118,817.32
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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.