Finding the Fourth Proportional to 438,991.14, 658,034.73 and 172,643.70
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Solution
The fourth proportional to 438,991.14, 658,034.73 and 172,643.70 is: 258,787.80
Step by Step Solution
- Step 1: Write the proportion equation
438,991.14 : 658,034.73 = 172,643.70 : x - Step 2: Convert to fraction form
438,991.14/658,034.73 = 172,643.70/x - Step 3: Cross multiply
438,991.14x = 658,034.73 × 172,643.70 - Step 4: Simplify right side
438,991.14x = 113,605,550,515.70 - Step 5: Solve for x
x = 113,605,550,515.70/438,991.14 - Step 6: Final answer
x = 258,787.80
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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.