Finding the Fourth Proportional to 256,071.12, 353,377.92 and 142,894.08
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Solution
The fourth proportional to 256,071.12, 353,377.92 and 142,894.08 is: 197,193.70
Step by Step Solution
- Step 1: Write the proportion equation
256,071.12 : 353,377.92 = 142,894.08 : x - Step 2: Convert to fraction form
256,071.12/353,377.92 = 142,894.08/x - Step 3: Cross multiply
256,071.12x = 353,377.92 × 142,894.08 - Step 4: Simplify right side
256,071.12x = 50,495,612,770.71 - Step 5: Solve for x
x = 50,495,612,770.71/256,071.12 - Step 6: Final answer
x = 197,193.70
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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.