Finding the Fourth Proportional to 189,387.56, 284,070.20 and 71,048.99
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Solution
The fourth proportional to 189,387.56, 284,070.20 and 71,048.99 is: 106,569.30
Step by Step Solution
- Step 1: Write the proportion equation
189,387.56 : 284,070.20 = 71,048.99 : x - Step 2: Convert to fraction form
189,387.56/284,070.20 = 71,048.99/x - Step 3: Cross multiply
189,387.56x = 284,070.20 × 71,048.99 - Step 4: Simplify right side
189,387.56x = 20,182,899,023.50 - Step 5: Solve for x
x = 20,182,899,023.50/189,387.56 - Step 6: Final answer
x = 106,569.30
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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.