Finding the Fourth Proportional to 278,941.65, 418,415.43 and 110,502.99
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Solution
The fourth proportional to 278,941.65, 418,415.43 and 110,502.99 is: 165,755.66
Step by Step Solution
- Step 1: Write the proportion equation
278,941.65 : 418,415.43 = 110,502.99 : x - Step 2: Convert to fraction form
278,941.65/418,415.43 = 110,502.99/x - Step 3: Cross multiply
278,941.65x = 418,415.43 × 110,502.99 - Step 4: Simplify right side
278,941.65x = 46,236,156,077.14 - Step 5: Solve for x
x = 46,236,156,077.14/278,941.65 - Step 6: Final answer
x = 165,755.66
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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.