Finding the Fourth Proportional to 260,081.63, 390,135.94 and 82,602.53
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Solution
The fourth proportional to 260,081.63, 390,135.94 and 82,602.53 is: 123,908.07
Step by Step Solution
- Step 1: Write the proportion equation
260,081.63 : 390,135.94 = 82,602.53 : x - Step 2: Convert to fraction form
260,081.63/390,135.94 = 82,602.53/x - Step 3: Cross multiply
260,081.63x = 390,135.94 × 82,602.53 - Step 4: Simplify right side
260,081.63x = 32,226,213,324.24 - Step 5: Solve for x
x = 32,226,213,324.24/260,081.63 - Step 6: Final answer
x = 123,908.07
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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.