Finding the Fourth Proportional to 251,976.32, 347,727.36 and 138,799.08
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Solution
The fourth proportional to 251,976.32, 347,727.36 and 138,799.08 is: 191,542.75
Step by Step Solution
- Step 1: Write the proportion equation
251,976.32 : 347,727.36 = 138,799.08 : x - Step 2: Convert to fraction form
251,976.32/347,727.36 = 138,799.08/x - Step 3: Cross multiply
251,976.32x = 347,727.36 × 138,799.08 - Step 4: Simplify right side
251,976.32x = 48,264,237,658.83 - Step 5: Solve for x
x = 48,264,237,658.83/251,976.32 - Step 6: Final answer
x = 191,542.75
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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.