Finding the Fourth Proportional to 155,408.20, 232,678.26 and 84,075.76
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Solution
The fourth proportional to 155,408.20, 232,678.26 and 84,075.76 is: 125,878.82
Step by Step Solution
- Step 1: Write the proportion equation
155,408.20 : 232,678.26 = 84,075.76 : x - Step 2: Convert to fraction form
155,408.20/232,678.26 = 84,075.76/x - Step 3: Cross multiply
155,408.20x = 232,678.26 × 84,075.76 - Step 4: Simplify right side
155,408.20x = 19,562,601,544.98 - Step 5: Solve for x
x = 19,562,601,544.98/155,408.20 - Step 6: Final answer
x = 125,878.82
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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.