Finding the Fourth Proportional to 238,809.09, 329,558.68 and 129,915.80
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Solution
The fourth proportional to 238,809.09, 329,558.68 and 129,915.80 is: 179,284.96
Step by Step Solution
- Step 1: Write the proportion equation
238,809.09 : 329,558.68 = 129,915.80 : x - Step 2: Convert to fraction form
238,809.09/329,558.68 = 129,915.80/x - Step 3: Cross multiply
238,809.09x = 329,558.68 × 129,915.80 - Step 4: Simplify right side
238,809.09x = 42,814,877,586.56 - Step 5: Solve for x
x = 42,814,877,586.56/238,809.09 - Step 6: Final answer
x = 179,284.96
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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.