Finding the Fourth Proportional to 429,779.18, 644,668.07 and 114,236.06
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Solution
The fourth proportional to 429,779.18, 644,668.07 and 114,236.06 is: 171,353.89
Step by Step Solution
- Step 1: Write the proportion equation
429,779.18 : 644,668.07 = 114,236.06 : x - Step 2: Convert to fraction form
429,779.18/644,668.07 = 114,236.06/x - Step 3: Cross multiply
429,779.18x = 644,668.07 × 114,236.06 - Step 4: Simplify right side
429,779.18x = 73,644,336,530.08 - Step 5: Solve for x
x = 73,644,336,530.08/429,779.18 - Step 6: Final answer
x = 171,353.89
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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.