Finding the Fourth Proportional to 512,663.60, 769,129.80 and 197,130.80
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Solution
The fourth proportional to 512,663.60, 769,129.80 and 197,130.80 is: 295,747.88
Step by Step Solution
- Step 1: Write the proportion equation
512,663.60 : 769,129.80 = 197,130.80 : x - Step 2: Convert to fraction form
512,663.60/769,129.80 = 197,130.80/x - Step 3: Cross multiply
512,663.60x = 769,129.80 × 197,130.80 - Step 4: Simplify right side
512,663.60x = 151,619,172,777.84 - Step 5: Solve for x
x = 151,619,172,777.84/512,663.60 - Step 6: Final answer
x = 295,747.88
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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.