Finding the Fourth Proportional to 289,715.08, 399,799.78 and 160,652.84
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Solution
The fourth proportional to 289,715.08, 399,799.78 and 160,652.84 is: 221,697.02
Step by Step Solution
- Step 1: Write the proportion equation
289,715.08 : 399,799.78 = 160,652.84 : x - Step 2: Convert to fraction form
289,715.08/399,799.78 = 160,652.84/x - Step 3: Cross multiply
289,715.08x = 399,799.78 × 160,652.84 - Step 4: Simplify right side
289,715.08x = 64,228,970,088.38 - Step 5: Solve for x
x = 64,228,970,088.38/289,715.08 - Step 6: Final answer
x = 221,697.02
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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.