Finding the Fourth Proportional to 387,958.58, 581,792.67 and 135,174.18
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Solution
The fourth proportional to 387,958.58, 581,792.67 and 135,174.18 is: 202,710.68
Step by Step Solution
- Step 1: Write the proportion equation
387,958.58 : 581,792.67 = 135,174.18 : x - Step 2: Convert to fraction form
387,958.58/581,792.67 = 135,174.18/x - Step 3: Cross multiply
387,958.58x = 581,792.67 × 135,174.18 - Step 4: Simplify right side
387,958.58x = 78,643,347,097.26 - Step 5: Solve for x
x = 78,643,347,097.26/387,958.58 - Step 6: Final answer
x = 202,710.68
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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.