Finding the Fourth Proportional to 401,900.74, 554,616.05 and 218,135.36
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Solution
The fourth proportional to 401,900.74, 554,616.05 and 218,135.36 is: 301,023.02
Step by Step Solution
- Step 1: Write the proportion equation
401,900.74 : 554,616.05 = 218,135.36 : x - Step 2: Convert to fraction form
401,900.74/554,616.05 = 218,135.36/x - Step 3: Cross multiply
401,900.74x = 554,616.05 × 218,135.36 - Step 4: Simplify right side
401,900.74x = 120,981,373,660.41 - Step 5: Solve for x
x = 120,981,373,660.41/401,900.74 - Step 6: Final answer
x = 301,023.02
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Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.