Finding the Fourth Proportional to 286,006.80, 394,671.60 and 158,679.84
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Solution
The fourth proportional to 286,006.80, 394,671.60 and 158,679.84 is: 218,968.31
Step by Step Solution
- Step 1: Write the proportion equation
286,006.80 : 394,671.60 = 158,679.84 : x - Step 2: Convert to fraction form
286,006.80/394,671.60 = 158,679.84/x - Step 3: Cross multiply
286,006.80x = 394,671.60 × 158,679.84 - Step 4: Simplify right side
286,006.80x = 62,626,426,340.54 - Step 5: Solve for x
x = 62,626,426,340.54/286,006.80 - Step 6: Final answer
x = 218,968.31
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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.