Finding the Fourth Proportional to 278,393.59, 384,177.81 and 157,532.68
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Solution
The fourth proportional to 278,393.59, 384,177.81 and 157,532.68 is: 217,392.07
Step by Step Solution
- Step 1: Write the proportion equation
278,393.59 : 384,177.81 = 157,532.68 : x - Step 2: Convert to fraction form
278,393.59/384,177.81 = 157,532.68/x - Step 3: Cross multiply
278,393.59x = 384,177.81 × 157,532.68 - Step 4: Simplify right side
278,393.59x = 60,520,560,005.83 - Step 5: Solve for x
x = 60,520,560,005.83/278,393.59 - Step 6: Final answer
x = 217,392.07
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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.