Finding the Fourth Proportional to 665,389.44, 998,242.08 and 216,111.84
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Solution
The fourth proportional to 665,389.44, 998,242.08 and 216,111.84 is: 324,219.05
Step by Step Solution
- Step 1: Write the proportion equation
665,389.44 : 998,242.08 = 216,111.84 : x - Step 2: Convert to fraction form
665,389.44/998,242.08 = 216,111.84/x - Step 3: Cross multiply
665,389.44x = 998,242.08 × 216,111.84 - Step 4: Simplify right side
665,389.44x = 215,731,932,674.23 - Step 5: Solve for x
x = 215,731,932,674.23/665,389.44 - Step 6: Final answer
x = 324,219.05
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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.