Finding the Fourth Proportional to 283,772.21, 391,605.53 and 162,921.29
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Solution
The fourth proportional to 283,772.21, 391,605.53 and 162,921.29 is: 224,831.31
Step by Step Solution
- Step 1: Write the proportion equation
283,772.21 : 391,605.53 = 162,921.29 : x - Step 2: Convert to fraction form
283,772.21/391,605.53 = 162,921.29/x - Step 3: Cross multiply
283,772.21x = 391,605.53 × 162,921.29 - Step 4: Simplify right side
283,772.21x = 63,800,877,304.13 - Step 5: Solve for x
x = 63,800,877,304.13/283,772.21 - Step 6: Final answer
x = 224,831.31
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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.