Finding the Fourth Proportional to 260,321.84, 390,374.60 and 127,163.44
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Solution
The fourth proportional to 260,321.84, 390,374.60 and 127,163.44 is: 190,692.33
Step by Step Solution
- Step 1: Write the proportion equation
260,321.84 : 390,374.60 = 127,163.44 : x - Step 2: Convert to fraction form
260,321.84/390,374.60 = 127,163.44/x - Step 3: Cross multiply
260,321.84x = 390,374.60 × 127,163.44 - Step 4: Simplify right side
260,321.84x = 49,641,377,024.62 - Step 5: Solve for x
x = 49,641,377,024.62/260,321.84 - Step 6: Final answer
x = 190,692.33
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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.