Finding the Fourth Proportional to 418,028.09, 626,881.64 and 177,989.81
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Solution
The fourth proportional to 418,028.09, 626,881.64 and 177,989.81 is: 266,916.37
Step by Step Solution
- Step 1: Write the proportion equation
418,028.09 : 626,881.64 = 177,989.81 : x - Step 2: Convert to fraction form
418,028.09/626,881.64 = 177,989.81/x - Step 3: Cross multiply
418,028.09x = 626,881.64 × 177,989.81 - Step 4: Simplify right side
418,028.09x = 111,578,539,971.73 - Step 5: Solve for x
x = 111,578,539,971.73/418,028.09 - Step 6: Final answer
x = 266,916.37
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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.