Finding the Fourth Proportional to 289,819.68, 399,489.06 and 228,465.84
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Solution
The fourth proportional to 289,819.68, 399,489.06 and 228,465.84 is: 314,918.59
Step by Step Solution
- Step 1: Write the proportion equation
289,819.68 : 399,489.06 = 228,465.84 : x - Step 2: Convert to fraction form
289,819.68/399,489.06 = 228,465.84/x - Step 3: Cross multiply
289,819.68x = 399,489.06 × 228,465.84 - Step 4: Simplify right side
289,819.68x = 91,269,603,663.71 - Step 5: Solve for x
x = 91,269,603,663.71/289,819.68 - Step 6: Final answer
x = 314,918.59
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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.