Finding the Fourth Proportional to 239,946.75, 331,126.52 and 139,351.23
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Solution
The fourth proportional to 239,946.75, 331,126.52 and 139,351.23 is: 192,304.70
Step by Step Solution
- Step 1: Write the proportion equation
239,946.75 : 331,126.52 = 139,351.23 : x - Step 2: Convert to fraction form
239,946.75/331,126.52 = 139,351.23/x - Step 3: Cross multiply
239,946.75x = 331,126.52 × 139,351.23 - Step 4: Simplify right side
239,946.75x = 46,142,887,150.86 - Step 5: Solve for x
x = 46,142,887,150.86/239,946.75 - Step 6: Final answer
x = 192,304.70
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1.5x scale
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.