Finding the Fourth Proportional to 343,648.18, 474,211.70 and 190,676.68
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Solution
The fourth proportional to 343,648.18, 474,211.70 and 190,676.68 is: 263,121.17
Step by Step Solution
- Step 1: Write the proportion equation
343,648.18 : 474,211.70 = 190,676.68 : x - Step 2: Convert to fraction form
343,648.18/474,211.70 = 190,676.68/x - Step 3: Cross multiply
343,648.18x = 474,211.70 × 190,676.68 - Step 4: Simplify right side
343,648.18x = 90,421,110,678.79 - Step 5: Solve for x
x = 90,421,110,678.79/343,648.18 - Step 6: Final answer
x = 263,121.17
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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.