Finding the Fourth Proportional to 386,135.08, 532,865.70 and 235,232.08
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Solution
The fourth proportional to 386,135.08, 532,865.70 and 235,232.08 is: 324,619.84
Step by Step Solution
- Step 1: Write the proportion equation
386,135.08 : 532,865.70 = 235,232.08 : x - Step 2: Convert to fraction form
386,135.08/532,865.70 = 235,232.08/x - Step 3: Cross multiply
386,135.08x = 532,865.70 × 235,232.08 - Step 4: Simplify right side
386,135.08x = 125,347,106,971.66 - Step 5: Solve for x
x = 125,347,106,971.66/386,135.08 - Step 6: Final answer
x = 324,619.84
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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.