Finding the Fourth Proportional to 431,277.60, 647,146.80 and 194,656.80
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Solution
The fourth proportional to 431,277.60, 647,146.80 and 194,656.80 is: 292,089.19
Step by Step Solution
- Step 1: Write the proportion equation
431,277.60 : 647,146.80 = 194,656.80 : x - Step 2: Convert to fraction form
431,277.60/647,146.80 = 194,656.80/x - Step 3: Cross multiply
431,277.60x = 647,146.80 × 194,656.80 - Step 4: Simplify right side
431,277.60x = 125,971,525,218.24 - Step 5: Solve for x
x = 125,971,525,218.24/431,277.60 - Step 6: Final answer
x = 292,089.19
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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.