Finding the Fourth Proportional to 138,467.14, 207,702.36 and 38,621.26
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Solution
The fourth proportional to 138,467.14, 207,702.36 and 38,621.26 is: 57,932.35
Step by Step Solution
- Step 1: Write the proportion equation
138,467.14 : 207,702.36 = 38,621.26 : x - Step 2: Convert to fraction form
138,467.14/207,702.36 = 38,621.26/x - Step 3: Cross multiply
138,467.14x = 207,702.36 × 38,621.26 - Step 4: Simplify right side
138,467.14x = 8,021,726,655.07 - Step 5: Solve for x
x = 8,021,726,655.07/138,467.14 - Step 6: Final answer
x = 57,932.35
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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.