Finding the Fourth Proportional to 251,824.25, 347,506.97 and 138,639.71
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Solution
The fourth proportional to 251,824.25, 347,506.97 and 138,639.71 is: 191,317.02
Step by Step Solution
- Step 1: Write the proportion equation
251,824.25 : 347,506.97 = 138,639.71 : x - Step 2: Convert to fraction form
251,824.25/347,506.97 = 138,639.71/x - Step 3: Cross multiply
251,824.25x = 347,506.97 × 138,639.71 - Step 4: Simplify right side
251,824.25x = 48,178,266,759.15 - Step 5: Solve for x
x = 48,178,266,759.15/251,824.25 - Step 6: Final answer
x = 191,317.02
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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.