Finding the Fourth Proportional to 256,763.88, 354,319.68 and 142,035.84
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Solution
The fourth proportional to 256,763.88, 354,319.68 and 142,035.84 is: 196,001.45
Step by Step Solution
- Step 1: Write the proportion equation
256,763.88 : 354,319.68 = 142,035.84 : x - Step 2: Convert to fraction form
256,763.88/354,319.68 = 142,035.84/x - Step 3: Cross multiply
256,763.88x = 354,319.68 × 142,035.84 - Step 4: Simplify right side
256,763.88x = 50,326,093,377.33 - Step 5: Solve for x
x = 50,326,093,377.33/256,763.88 - Step 6: Final answer
x = 196,001.45
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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.