Finding the Fourth Proportional to 289,410.53, 399,354.09 and 160,316.70
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Solution
The fourth proportional to 289,410.53, 399,354.09 and 160,316.70 is: 221,219.08
Step by Step Solution
- Step 1: Write the proportion equation
289,410.53 : 399,354.09 = 160,316.70 : x - Step 2: Convert to fraction form
289,410.53/399,354.09 = 160,316.70/x - Step 3: Cross multiply
289,410.53x = 399,354.09 × 160,316.70 - Step 4: Simplify right side
289,410.53x = 64,023,129,840.30 - Step 5: Solve for x
x = 64,023,129,840.30/289,410.53 - Step 6: Final answer
x = 221,219.08
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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.