Finding the Fourth Proportional to 251,953.74, 347,696.14 and 138,776.48
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Solution
The fourth proportional to 251,953.74, 347,696.14 and 138,776.48 is: 191,511.53
Step by Step Solution
- Step 1: Write the proportion equation
251,953.74 : 347,696.14 = 138,776.48 : x - Step 2: Convert to fraction form
251,953.74/347,696.14 = 138,776.48/x - Step 3: Cross multiply
251,953.74x = 347,696.14 × 138,776.48 - Step 4: Simplify right side
251,953.74x = 48,252,046,418.79 - Step 5: Solve for x
x = 48,252,046,418.79/251,953.74 - Step 6: Final answer
x = 191,511.53
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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.