Finding the Fourth Proportional to 268,648.18, 370,722.79 and 147,781.80
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Solution
The fourth proportional to 268,648.18, 370,722.79 and 147,781.80 is: 203,932.45
Step by Step Solution
- Step 1: Write the proportion equation
268,648.18 : 370,722.79 = 147,781.80 : x - Step 2: Convert to fraction form
268,648.18/370,722.79 = 147,781.80/x - Step 3: Cross multiply
268,648.18x = 370,722.79 × 147,781.80 - Step 4: Simplify right side
268,648.18x = 54,786,081,207.22 - Step 5: Solve for x
x = 54,786,081,207.22/268,648.18 - Step 6: Final answer
x = 203,932.45
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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.