Finding the Fourth Proportional to 343,685.58, 515,405.35 and 118,985.68
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Solution
The fourth proportional to 343,685.58, 515,405.35 and 118,985.68 is: 178,435.94
Step by Step Solution
- Step 1: Write the proportion equation
343,685.58 : 515,405.35 = 118,985.68 : x - Step 2: Convert to fraction form
343,685.58/515,405.35 = 118,985.68/x - Step 3: Cross multiply
343,685.58x = 515,405.35 × 118,985.68 - Step 4: Simplify right side
343,685.58x = 61,325,858,622.60 - Step 5: Solve for x
x = 61,325,858,622.60/343,685.58 - Step 6: Final answer
x = 178,435.94
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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.