Finding the Fourth Proportional to 289,799.71, 399,461.51 and 228,445.84
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Solution
The fourth proportional to 289,799.71, 399,461.51 and 228,445.84 is: 314,890.99
Step by Step Solution
- Step 1: Write the proportion equation
289,799.71 : 399,461.51 = 228,445.84 : x - Step 2: Convert to fraction form
289,799.71/399,461.51 = 228,445.84/x - Step 3: Cross multiply
289,799.71x = 399,461.51 × 228,445.84 - Step 4: Simplify right side
289,799.71x = 91,255,317,738.08 - Step 5: Solve for x
x = 91,255,317,738.08/289,799.71 - Step 6: Final answer
x = 314,890.99
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1.5x scale
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.