Finding the Fourth Proportional to 239,134.62, 329,981.36 and 147,239.31
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Solution
The fourth proportional to 239,134.62, 329,981.36 and 147,239.31 is: 203,175.21
Step by Step Solution
- Step 1: Write the proportion equation
239,134.62 : 329,981.36 = 147,239.31 : x - Step 2: Convert to fraction form
239,134.62/329,981.36 = 147,239.31/x - Step 3: Cross multiply
239,134.62x = 329,981.36 × 147,239.31 - Step 4: Simplify right side
239,134.62x = 48,586,227,759.26 - Step 5: Solve for x
x = 48,586,227,759.26/239,134.62 - Step 6: Final answer
x = 203,175.21
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Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.