Finding the Fourth Proportional to 212,498.36, 317,192.80 and 187,276.44
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Solution
The fourth proportional to 212,498.36, 317,192.80 and 187,276.44 is: 279,544.46
Step by Step Solution
- Step 1: Write the proportion equation
212,498.36 : 317,192.80 = 187,276.44 : x - Step 2: Convert to fraction form
212,498.36/317,192.80 = 187,276.44/x - Step 3: Cross multiply
212,498.36x = 317,192.80 × 187,276.44 - Step 4: Simplify right side
212,498.36x = 59,402,738,377.63 - Step 5: Solve for x
x = 59,402,738,377.63/212,498.36 - Step 6: Final answer
x = 279,544.46
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Why These Related Problems?
These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.