Finding the Fourth Proportional to 289,678.08, 399,156.48 and 232,861.44
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Solution
The fourth proportional to 289,678.08, 399,156.48 and 232,861.44 is: 320,867.06
Step by Step Solution
- Step 1: Write the proportion equation
289,678.08 : 399,156.48 = 232,861.44 : x - Step 2: Convert to fraction form
289,678.08/399,156.48 = 232,861.44/x - Step 3: Cross multiply
289,678.08x = 399,156.48 × 232,861.44 - Step 4: Simplify right side
289,678.08x = 92,948,152,718.13 - Step 5: Solve for x
x = 92,948,152,718.13/289,678.08 - Step 6: Final answer
x = 320,867.06
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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.