Finding the Fourth Proportional to 308,240, 462,360 and 86,624
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Solution
The fourth proportional to 308,240, 462,360 and 86,624 is: 129,936
Step by Step Solution
- Step 1: Write the proportion equation
308,240 : 462,360 = 86,624 : x - Step 2: Convert to fraction form
308,240/462,360 = 86,624/x - Step 3: Cross multiply
308,240x = 462,360 × 86,624 - Step 4: Simplify right side
308,240x = 40,051,472,640 - Step 5: Solve for x
x = 40,051,472,640/308,240 - Step 6: Final answer
x = 129,936
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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.