Finding the Third Proportional to 138,298.50 and 221,811.75
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Solution
The third proportional to 138,298.50 and 221,811.75 is: 355,755.50
Step by Step Solution
- Step 1: Write the proportion equation
138,298.50 : 221,811.75 = 221,811.75 : x - Step 2: Convert to fraction form
138,298.50/221,811.75 = 221,811.75/x - Step 3: Cross multiply
138,298.50x = 221,811.75 × 221,811.75 - Step 4: Simplify right side
138,298.50x = 49,200,452,438.06 - Step 5: Solve for x
x = 49,200,452,438.06/138,298.50 - Step 6: Final answer
x = 355,755.50
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These problems maintain the same ratio (1.60) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.