Finding the Fourth Proportional to 251,378.88, 346,933.08 and 143,983.68
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Solution
The fourth proportional to 251,378.88, 346,933.08 and 143,983.68 is: 198,714.79
Step by Step Solution
- Step 1: Write the proportion equation
251,378.88 : 346,933.08 = 143,983.68 : x - Step 2: Convert to fraction form
251,378.88/346,933.08 = 143,983.68/x - Step 3: Cross multiply
251,378.88x = 346,933.08 × 143,983.68 - Step 4: Simplify right side
251,378.88x = 49,952,701,572.13 - Step 5: Solve for x
x = 49,952,701,572.13/251,378.88 - Step 6: Final answer
x = 198,714.79
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Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.