Finding the Fourth Proportional to 242,521.20, 363,781.80 and 207,091.80
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Solution
The fourth proportional to 242,521.20, 363,781.80 and 207,091.80 is: 310,637.70
Step by Step Solution
- Step 1: Write the proportion equation
242,521.20 : 363,781.80 = 207,091.80 : x - Step 2: Convert to fraction form
242,521.20/363,781.80 = 207,091.80/x - Step 3: Cross multiply
242,521.20x = 363,781.80 × 207,091.80 - Step 4: Simplify right side
242,521.20x = 75,336,227,769.24 - Step 5: Solve for x
x = 75,336,227,769.24/242,521.20 - Step 6: Final answer
x = 310,637.70
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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.