Finding the Fourth Proportional to 251,949.99, 347,690.96 and 138,772.74
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Solution
The fourth proportional to 251,949.99, 347,690.96 and 138,772.74 is: 191,506.37
Step by Step Solution
- Step 1: Write the proportion equation
251,949.99 : 347,690.96 = 138,772.74 : x - Step 2: Convert to fraction form
251,949.99/347,690.96 = 138,772.74/x - Step 3: Cross multiply
251,949.99x = 347,690.96 × 138,772.74 - Step 4: Simplify right side
251,949.99x = 48,250,027,192.43 - Step 5: Solve for x
x = 48,250,027,192.43/251,949.99 - Step 6: Final answer
x = 191,506.37
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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.