Finding the Fourth Proportional to 286,912.36, 395,703.52 and 254,670.58
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Solution
The fourth proportional to 286,912.36, 395,703.52 and 254,670.58 is: 351,236.33
Step by Step Solution
- Step 1: Write the proportion equation
286,912.36 : 395,703.52 = 254,670.58 : x - Step 2: Convert to fraction form
286,912.36/395,703.52 = 254,670.58/x - Step 3: Cross multiply
286,912.36x = 395,703.52 × 254,670.58 - Step 4: Simplify right side
286,912.36x = 100,774,044,946.44 - Step 5: Solve for x
x = 100,774,044,946.44/286,912.36 - Step 6: Final answer
x = 351,236.33
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1.5x scale
Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.