Finding the Fourth Proportional to 277,821.75, 383,393.17 and 156,962.99
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Solution
The fourth proportional to 277,821.75, 383,393.17 and 156,962.99 is: 216,608.45
Step by Step Solution
- Step 1: Write the proportion equation
277,821.75 : 383,393.17 = 156,962.99 : x - Step 2: Convert to fraction form
277,821.75/383,393.17 = 156,962.99/x - Step 3: Cross multiply
277,821.75x = 383,393.17 × 156,962.99 - Step 4: Simplify right side
277,821.75x = 60,178,538,308.78 - Step 5: Solve for x
x = 60,178,538,308.78/277,821.75 - Step 6: Final answer
x = 216,608.45
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1.5x scale
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.