Finding the Fourth Proportional to 353,822.72, 488,236.80 and 202,915.84
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Solution
The fourth proportional to 353,822.72, 488,236.80 and 202,915.84 is: 280,001.75
Step by Step Solution
- Step 1: Write the proportion equation
353,822.72 : 488,236.80 = 202,915.84 : x - Step 2: Convert to fraction form
353,822.72/488,236.80 = 202,915.84/x - Step 3: Cross multiply
353,822.72x = 488,236.80 × 202,915.84 - Step 4: Simplify right side
353,822.72x = 99,070,980,390.91 - Step 5: Solve for x
x = 99,070,980,390.91/353,822.72 - Step 6: Final answer
x = 280,001.75
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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.