Finding the Fourth Proportional to 343,485.80, 515,130.24 and 115,756.62
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Solution
The fourth proportional to 343,485.80, 515,130.24 and 115,756.62 is: 173,601.75
Step by Step Solution
- Step 1: Write the proportion equation
343,485.80 : 515,130.24 = 115,756.62 : x - Step 2: Convert to fraction form
343,485.80/515,130.24 = 115,756.62/x - Step 3: Cross multiply
343,485.80x = 515,130.24 × 115,756.62 - Step 4: Simplify right side
343,485.80x = 59,629,735,442.19 - Step 5: Solve for x
x = 59,629,735,442.19/343,485.80 - Step 6: Final answer
x = 173,601.75
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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.