Finding the Fourth Proportional to 208,393.30, 312,257.79 and 133,451.80
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Solution
The fourth proportional to 208,393.30, 312,257.79 and 133,451.80 is: 199,964.99
Step by Step Solution
- Step 1: Write the proportion equation
208,393.30 : 312,257.79 = 133,451.80 : x - Step 2: Convert to fraction form
208,393.30/312,257.79 = 133,451.80/x - Step 3: Cross multiply
208,393.30x = 312,257.79 × 133,451.80 - Step 4: Simplify right side
208,393.30x = 41,671,364,139.52 - Step 5: Solve for x
x = 41,671,364,139.52/208,393.30 - Step 6: Final answer
x = 199,964.99
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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.