Finding the Fourth Proportional to 247,768.99, 341,839.89 and 138,857.41
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Solution
The fourth proportional to 247,768.99, 341,839.89 and 138,857.41 is: 191,577.66
Step by Step Solution
- Step 1: Write the proportion equation
247,768.99 : 341,839.89 = 138,857.41 : x - Step 2: Convert to fraction form
247,768.99/341,839.89 = 138,857.41/x - Step 3: Cross multiply
247,768.99x = 341,839.89 × 138,857.41 - Step 4: Simplify right side
247,768.99x = 47,467,003,051.17 - Step 5: Solve for x
x = 47,467,003,051.17/247,768.99 - Step 6: Final answer
x = 191,577.66
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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.