Finding the Fourth Proportional to 201,776.30, 278,317.95 and 126,193.58
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Solution
The fourth proportional to 201,776.30, 278,317.95 and 126,193.58 is: 174,063.75
Step by Step Solution
- Step 1: Write the proportion equation
201,776.30 : 278,317.95 = 126,193.58 : x - Step 2: Convert to fraction form
201,776.30/278,317.95 = 126,193.58/x - Step 3: Cross multiply
201,776.30x = 278,317.95 × 126,193.58 - Step 4: Simplify right side
201,776.30x = 35,121,938,488.76 - Step 5: Solve for x
x = 35,121,938,488.76/201,776.30 - Step 6: Final answer
x = 174,063.75
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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.