Finding the Third Proportional to 138,420.75 and 297,441.75
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Solution
The third proportional to 138,420.75 and 297,441.75 is: 639,149.80
Step by Step Solution
- Step 1: Write the proportion equation
138,420.75 : 297,441.75 = 297,441.75 : x - Step 2: Convert to fraction form
138,420.75/297,441.75 = 297,441.75/x - Step 3: Cross multiply
138,420.75x = 297,441.75 × 297,441.75 - Step 4: Simplify right side
138,420.75x = 88,471,594,643.06 - Step 5: Solve for x
x = 88,471,594,643.06/138,420.75 - Step 6: Final answer
x = 639,149.80
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These problems maintain the same ratio (2.15) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.