Finding the Fourth Proportional to 251,516.97, 347,099.99 and 138,342.69
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Solution
The fourth proportional to 251,516.97, 347,099.99 and 138,342.69 is: 190,916.52
Step by Step Solution
- Step 1: Write the proportion equation
251,516.97 : 347,099.99 = 138,342.69 : x - Step 2: Convert to fraction form
251,516.97/347,099.99 = 138,342.69/x - Step 3: Cross multiply
251,516.97x = 347,099.99 × 138,342.69 - Step 4: Simplify right side
251,516.97x = 48,018,745,623.86 - Step 5: Solve for x
x = 48,018,745,623.86/251,516.97 - Step 6: Final answer
x = 190,916.52
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1.5x scale
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.