Finding the Fourth Proportional to 329,865.12, 455,213.92 and 178,962.08
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Solution
The fourth proportional to 329,865.12, 455,213.92 and 178,962.08 is: 246,967.70
Step by Step Solution
- Step 1: Write the proportion equation
329,865.12 : 455,213.92 = 178,962.08 : x - Step 2: Convert to fraction form
329,865.12/455,213.92 = 178,962.08/x - Step 3: Cross multiply
329,865.12x = 455,213.92 × 178,962.08 - Step 4: Simplify right side
329,865.12x = 81,466,029,968.15 - Step 5: Solve for x
x = 81,466,029,968.15/329,865.12 - Step 6: Final answer
x = 246,967.70
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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.