Finding the Fourth Proportional to 276,079.49, 414,107.19 and 86,535.53
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Solution
The fourth proportional to 276,079.49, 414,107.19 and 86,535.53 is: 129,799.52
Step by Step Solution
- Step 1: Write the proportion equation
276,079.49 : 414,107.19 = 86,535.53 : x - Step 2: Convert to fraction form
276,079.49/414,107.19 = 86,535.53/x - Step 3: Cross multiply
276,079.49x = 414,107.19 × 86,535.53 - Step 4: Simplify right side
276,079.49x = 35,834,985,567.12 - Step 5: Solve for x
x = 35,834,985,567.12/276,079.49 - Step 6: Final answer
x = 129,799.52
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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.