Finding the Fourth Proportional to 221,039.09, 331,060.14 and 154,775.06
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Solution
The fourth proportional to 221,039.09, 331,060.14 and 154,775.06 is: 231,813.53
Step by Step Solution
- Step 1: Write the proportion equation
221,039.09 : 331,060.14 = 154,775.06 : x - Step 2: Convert to fraction form
221,039.09/331,060.14 = 154,775.06/x - Step 3: Cross multiply
221,039.09x = 331,060.14 × 154,775.06 - Step 4: Simplify right side
221,039.09x = 51,239,851,376.81 - Step 5: Solve for x
x = 51,239,851,376.81/221,039.09 - Step 6: Final answer
x = 231,813.53
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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.