Finding the Fourth Proportional to 292,290.20, 438,435.30 and 197,811.80
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Solution
The fourth proportional to 292,290.20, 438,435.30 and 197,811.80 is: 296,717.70
Step by Step Solution
- Step 1: Write the proportion equation
292,290.20 : 438,435.30 = 197,811.80 : x - Step 2: Convert to fraction form
292,290.20/438,435.30 = 197,811.80/x - Step 3: Cross multiply
292,290.20x = 438,435.30 × 197,811.80 - Step 4: Simplify right side
292,290.20x = 86,727,675,876.54 - Step 5: Solve for x
x = 86,727,675,876.54/292,290.20 - Step 6: Final answer
x = 296,717.70
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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.