Finding the Fourth Proportional to 399,546.18, 551,390.49 and 229,780.44
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Solution
The fourth proportional to 399,546.18, 551,390.49 and 229,780.44 is: 317,106.65
Step by Step Solution
- Step 1: Write the proportion equation
399,546.18 : 551,390.49 = 229,780.44 : x - Step 2: Convert to fraction form
399,546.18/551,390.49 = 229,780.44/x - Step 3: Cross multiply
399,546.18x = 551,390.49 × 229,780.44 - Step 4: Simplify right side
399,546.18x = 126,698,749,404.02 - Step 5: Solve for x
x = 126,698,749,404.02/399,546.18 - Step 6: Final answer
x = 317,106.65
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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.