Finding the Fourth Proportional to 394,518.60, 591,389.10 and 194,869.80
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Solution
The fourth proportional to 394,518.60, 591,389.10 and 194,869.80 is: 292,112.65
Step by Step Solution
- Step 1: Write the proportion equation
394,518.60 : 591,389.10 = 194,869.80 : x - Step 2: Convert to fraction form
394,518.60/591,389.10 = 194,869.80/x - Step 3: Cross multiply
394,518.60x = 591,389.10 × 194,869.80 - Step 4: Simplify right side
394,518.60x = 115,243,875,639.18 - Step 5: Solve for x
x = 115,243,875,639.18/394,518.60 - Step 6: Final answer
x = 292,112.65
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.