Finding the Fourth Proportional to 339,213.80, 508,820.70 and 102,531.80
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Solution
The fourth proportional to 339,213.80, 508,820.70 and 102,531.80 is: 153,797.70
Step by Step Solution
- Step 1: Write the proportion equation
339,213.80 : 508,820.70 = 102,531.80 : x - Step 2: Convert to fraction form
339,213.80/508,820.70 = 102,531.80/x - Step 3: Cross multiply
339,213.80x = 508,820.70 × 102,531.80 - Step 4: Simplify right side
339,213.80x = 52,170,302,248.26 - Step 5: Solve for x
x = 52,170,302,248.26/339,213.80 - Step 6: Final answer
x = 153,797.70
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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.