Finding the Fourth Proportional to 289,492.08, 434,903.40 and 205,460.88
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Solution
The fourth proportional to 289,492.08, 434,903.40 and 205,460.88 is: 308,663.49
Step by Step Solution
- Step 1: Write the proportion equation
289,492.08 : 434,903.40 = 205,460.88 : x - Step 2: Convert to fraction form
289,492.08/434,903.40 = 205,460.88/x - Step 3: Cross multiply
289,492.08x = 434,903.40 × 205,460.88 - Step 4: Simplify right side
289,492.08x = 89,355,635,278.99 - Step 5: Solve for x
x = 89,355,635,278.99/289,492.08 - Step 6: Final answer
x = 308,663.49
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1.5x scale
Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.