Finding the Fourth Proportional to 638,707.14, 958,214.61 and 239,351.42
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Solution
The fourth proportional to 638,707.14, 958,214.61 and 239,351.42 is: 359,084.81
Step by Step Solution
- Step 1: Write the proportion equation
638,707.14 : 958,214.61 = 239,351.42 : x - Step 2: Convert to fraction form
638,707.14/958,214.61 = 239,351.42/x - Step 3: Cross multiply
638,707.14x = 958,214.61 × 239,351.42 - Step 4: Simplify right side
638,707.14x = 229,350,029,963.78 - Step 5: Solve for x
x = 229,350,029,963.78/638,707.14 - Step 6: Final answer
x = 359,084.81
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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.