Finding the Fourth Proportional to 430,537.20, 645,514.20 and 228,166.80
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Solution
The fourth proportional to 430,537.20, 645,514.20 and 228,166.80 is: 342,095.66
Step by Step Solution
- Step 1: Write the proportion equation
430,537.20 : 645,514.20 = 228,166.80 : x - Step 2: Convert to fraction form
430,537.20/645,514.20 = 228,166.80/x - Step 3: Cross multiply
430,537.20x = 645,514.20 × 228,166.80 - Step 4: Simplify right side
430,537.20x = 147,284,909,368.56 - Step 5: Solve for x
x = 147,284,909,368.56/430,537.20 - Step 6: Final answer
x = 342,095.66
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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.