Finding the Fourth Proportional to 278,751.68, 384,592.56 and 157,873.76
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Solution
The fourth proportional to 278,751.68, 384,592.56 and 157,873.76 is: 217,817.79
Step by Step Solution
- Step 1: Write the proportion equation
278,751.68 : 384,592.56 = 157,873.76 : x - Step 2: Convert to fraction form
278,751.68/384,592.56 = 157,873.76/x - Step 3: Cross multiply
278,751.68x = 384,592.56 × 157,873.76 - Step 4: Simplify right side
278,751.68x = 60,717,073,515.23 - Step 5: Solve for x
x = 60,717,073,515.23/278,751.68 - Step 6: Final answer
x = 217,817.79
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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.