Finding the Fourth Proportional to 542,707.20, 814,099.68 and 143,343.99
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Solution
The fourth proportional to 542,707.20, 814,099.68 and 143,343.99 is: 215,026.25
Step by Step Solution
- Step 1: Write the proportion equation
542,707.20 : 814,099.68 = 143,343.99 : x - Step 2: Convert to fraction form
542,707.20/814,099.68 = 143,343.99/x - Step 3: Cross multiply
542,707.20x = 814,099.68 × 143,343.99 - Step 4: Simplify right side
542,707.20x = 116,696,296,388.92 - Step 5: Solve for x
x = 116,696,296,388.92/542,707.20 - Step 6: Final answer
x = 215,026.25
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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.