Finding the Fourth Proportional to 178,782.42, 246,743.38 and 115,304.75
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Solution
The fourth proportional to 178,782.42, 246,743.38 and 115,304.75 is: 159,135.80
Step by Step Solution
- Step 1: Write the proportion equation
178,782.42 : 246,743.38 = 115,304.75 : x - Step 2: Convert to fraction form
178,782.42/246,743.38 = 115,304.75/x - Step 3: Cross multiply
178,782.42x = 246,743.38 × 115,304.75 - Step 4: Simplify right side
178,782.42x = 28,450,683,580.76 - Step 5: Solve for x
x = 28,450,683,580.76/178,782.42 - Step 6: Final answer
x = 159,135.80
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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.