Finding the Fourth Proportional to 278,106.60, 383,794.67 and 157,265.97
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Solution
The fourth proportional to 278,106.60, 383,794.67 and 157,265.97 is: 217,031.31
Step by Step Solution
- Step 1: Write the proportion equation
278,106.60 : 383,794.67 = 157,265.97 : x - Step 2: Convert to fraction form
278,106.60/383,794.67 = 157,265.97/x - Step 3: Cross multiply
278,106.60x = 383,794.67 × 157,265.97 - Step 4: Simplify right side
278,106.60x = 60,357,840,272.05 - Step 5: Solve for x
x = 60,357,840,272.05/278,106.60 - Step 6: Final answer
x = 217,031.31
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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.