Finding the Fourth Proportional to 289,816.68, 399,484.92 and 228,462.84
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Solution
The fourth proportional to 289,816.68, 399,484.92 and 228,462.84 is: 314,914.45
Step by Step Solution
- Step 1: Write the proportion equation
289,816.68 : 399,484.92 = 228,462.84 : x - Step 2: Convert to fraction form
289,816.68/399,484.92 = 228,462.84/x - Step 3: Cross multiply
289,816.68x = 399,484.92 × 228,462.84 - Step 4: Simplify right side
289,816.68x = 91,267,459,360.37 - Step 5: Solve for x
x = 91,267,459,360.37/289,816.68 - Step 6: Final answer
x = 314,914.45
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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.