Finding the Fourth Proportional to 278,084.14, 383,740.74 and 157,217.76
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Solution
The fourth proportional to 278,084.14, 383,740.74 and 157,217.76 is: 216,951.82
Step by Step Solution
- Step 1: Write the proportion equation
278,084.14 : 383,740.74 = 157,217.76 : x - Step 2: Convert to fraction form
278,084.14/383,740.74 = 157,217.76/x - Step 3: Cross multiply
278,084.14x = 383,740.74 × 157,217.76 - Step 4: Simplify right side
278,084.14x = 60,330,859,563.54 - Step 5: Solve for x
x = 60,330,859,563.54/278,084.14 - Step 6: Final answer
x = 216,951.82
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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.