Finding the Fourth Proportional to 256,159.98, 353,520.99 and 148,763.70
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Solution
The fourth proportional to 256,159.98, 353,520.99 and 148,763.70 is: 205,305.65
Step by Step Solution
- Step 1: Write the proportion equation
256,159.98 : 353,520.99 = 148,763.70 : x - Step 2: Convert to fraction form
256,159.98/353,520.99 = 148,763.70/x - Step 3: Cross multiply
256,159.98x = 353,520.99 × 148,763.70 - Step 4: Simplify right side
256,159.98x = 52,591,090,500.06 - Step 5: Solve for x
x = 52,591,090,500.06/256,159.98 - Step 6: Final answer
x = 205,305.65
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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.