Finding the Third Proportional to 138,742.88 and 219,489.75
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Solution
The third proportional to 138,742.88 and 219,489.75 is: 347,230.45
Step by Step Solution
- Step 1: Write the proportion equation
138,742.88 : 219,489.75 = 219,489.75 : x - Step 2: Convert to fraction form
138,742.88/219,489.75 = 219,489.75/x - Step 3: Cross multiply
138,742.88x = 219,489.75 × 219,489.75 - Step 4: Simplify right side
138,742.88x = 48,175,750,355.06 - Step 5: Solve for x
x = 48,175,750,355.06/138,742.88 - Step 6: Final answer
x = 347,230.45
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These problems maintain the same ratio (1.58) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.