Finding the Third Proportional to 99,978 and 216,904.50
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Solution
The third proportional to 99,978 and 216,904.50 is: 470,579.15
Step by Step Solution
- Step 1: Write the proportion equation
99,978 : 216,904.50 = 216,904.50 : x - Step 2: Convert to fraction form
99,978/216,904.50 = 216,904.50/x - Step 3: Cross multiply
99,978x = 216,904.50 × 216,904.50 - Step 4: Simplify right side
99,978x = 47,047,562,120.25 - Step 5: Solve for x
x = 47,047,562,120.25/99,978 - Step 6: Final answer
x = 470,579.15
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These problems maintain the same ratio (2.17) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.