Finding the Fourth Proportional to 395,430.24, 545,690.96 and 214,138.02
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Solution
The fourth proportional to 395,430.24, 545,690.96 and 214,138.02 is: 295,508.97
Step by Step Solution
- Step 1: Write the proportion equation
395,430.24 : 545,690.96 = 214,138.02 : x - Step 2: Convert to fraction form
395,430.24/545,690.96 = 214,138.02/x - Step 3: Cross multiply
395,430.24x = 545,690.96 × 214,138.02 - Step 4: Simplify right side
395,430.24x = 116,853,181,706.30 - Step 5: Solve for x
x = 116,853,181,706.30/395,430.24 - Step 6: Final answer
x = 295,508.97
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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.