Finding the Fourth Proportional to 278,474.36, 384,295.36 and 151,149.96
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Solution
The fourth proportional to 278,474.36, 384,295.36 and 151,149.96 is: 208,587.35
Step by Step Solution
- Step 1: Write the proportion equation
278,474.36 : 384,295.36 = 151,149.96 : x - Step 2: Convert to fraction form
278,474.36/384,295.36 = 151,149.96/x - Step 3: Cross multiply
278,474.36x = 384,295.36 × 151,149.96 - Step 4: Simplify right side
278,474.36x = 58,086,228,292.19 - Step 5: Solve for x
x = 58,086,228,292.19/278,474.36 - Step 6: Final answer
x = 208,587.35
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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.