Finding the Fourth Proportional to 283,008.69, 390,231.95 and 218,331.81
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Solution
The fourth proportional to 283,008.69, 390,231.95 and 218,331.81 is: 301,050.99
Step by Step Solution
- Step 1: Write the proportion equation
283,008.69 : 390,231.95 = 218,331.81 : x - Step 2: Convert to fraction form
283,008.69/390,231.95 = 218,331.81/x - Step 3: Cross multiply
283,008.69x = 390,231.95 × 218,331.81 - Step 4: Simplify right side
283,008.69x = 85,200,046,871.67 - Step 5: Solve for x
x = 85,200,046,871.67/283,008.69 - Step 6: Final answer
x = 301,050.99
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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.