Finding the Fourth Proportional to 325,231.37, 487,638.93 and 156,415.47
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Solution
The fourth proportional to 325,231.37, 487,638.93 and 156,415.47 is: 234,523.12
Step by Step Solution
- Step 1: Write the proportion equation
325,231.37 : 487,638.93 = 156,415.47 : x - Step 2: Convert to fraction form
325,231.37/487,638.93 = 156,415.47/x - Step 3: Cross multiply
325,231.37x = 487,638.93 × 156,415.47 - Step 4: Simplify right side
325,231.37x = 76,274,273,927.13 - Step 5: Solve for x
x = 76,274,273,927.13/325,231.37 - Step 6: Final answer
x = 234,523.12
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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.