Finding the Fourth Proportional to 219,642.02, 329,338.20 and 86,450.08
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Solution
The fourth proportional to 219,642.02, 329,338.20 and 86,450.08 is: 129,625.99
Step by Step Solution
- Step 1: Write the proportion equation
219,642.02 : 329,338.20 = 86,450.08 : x - Step 2: Convert to fraction form
219,642.02/329,338.20 = 86,450.08/x - Step 3: Cross multiply
219,642.02x = 329,338.20 × 86,450.08 - Step 4: Simplify right side
219,642.02x = 28,471,313,737.06 - Step 5: Solve for x
x = 28,471,313,737.06/219,642.02 - Step 6: Final answer
x = 129,625.99
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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.