Finding the Fourth Proportional to 278,106.49, 417,221.82 and 118,187.49
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Solution
The fourth proportional to 278,106.49, 417,221.82 and 118,187.49 is: 177,307.62
Step by Step Solution
- Step 1: Write the proportion equation
278,106.49 : 417,221.82 = 118,187.49 : x - Step 2: Convert to fraction form
278,106.49/417,221.82 = 118,187.49/x - Step 3: Cross multiply
278,106.49x = 417,221.82 × 118,187.49 - Step 4: Simplify right side
278,106.49x = 49,310,399,679.03 - Step 5: Solve for x
x = 49,310,399,679.03/278,106.49 - Step 6: Final answer
x = 177,307.62
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.