Finding the Fourth Proportional to 183,988.21, 253,910.93 and 103,415.49
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Solution
The fourth proportional to 183,988.21, 253,910.93 and 103,415.49 is: 142,717.42
Step by Step Solution
- Step 1: Write the proportion equation
183,988.21 : 253,910.93 = 103,415.49 : x - Step 2: Convert to fraction form
183,988.21/253,910.93 = 103,415.49/x - Step 3: Cross multiply
183,988.21x = 253,910.93 × 103,415.49 - Step 4: Simplify right side
183,988.21x = 26,258,323,242.31 - Step 5: Solve for x
x = 26,258,323,242.31/183,988.21 - Step 6: Final answer
x = 142,717.42
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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.