Finding the Fourth Proportional to 328,727.41, 493,105.18 and 129,090.99
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Solution
The fourth proportional to 328,727.41, 493,105.18 and 129,090.99 is: 193,642.01
Step by Step Solution
- Step 1: Write the proportion equation
328,727.41 : 493,105.18 = 129,090.99 : x - Step 2: Convert to fraction form
328,727.41/493,105.18 = 129,090.99/x - Step 3: Cross multiply
328,727.41x = 493,105.18 × 129,090.99 - Step 4: Simplify right side
328,727.41x = 63,655,435,405.31 - Step 5: Solve for x
x = 63,655,435,405.31/328,727.41 - Step 6: Final answer
x = 193,642.01
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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.