Finding the Fourth Proportional to 331,697.40, 497,675.70 and 121,351.80
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Solution
The fourth proportional to 331,697.40, 497,675.70 and 121,351.80 is: 182,075.11
Step by Step Solution
- Step 1: Write the proportion equation
331,697.40 : 497,675.70 = 121,351.80 : x - Step 2: Convert to fraction form
331,697.40/497,675.70 = 121,351.80/x - Step 3: Cross multiply
331,697.40x = 497,675.70 × 121,351.80 - Step 4: Simplify right side
331,697.40x = 60,393,842,011.26 - Step 5: Solve for x
x = 60,393,842,011.26/331,697.40 - Step 6: Final answer
x = 182,075.11
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1.5x scale
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.