Finding the Fourth Proportional to 285,006.24, 393,294.24 and 155,941.92
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Solution
The fourth proportional to 285,006.24, 393,294.24 and 155,941.92 is: 215,191.99
Step by Step Solution
- Step 1: Write the proportion equation
285,006.24 : 393,294.24 = 155,941.92 : x - Step 2: Convert to fraction form
285,006.24/393,294.24 = 155,941.92/x - Step 3: Cross multiply
285,006.24x = 393,294.24 × 155,941.92 - Step 4: Simplify right side
285,006.24x = 61,331,058,910.54 - Step 5: Solve for x
x = 61,331,058,910.54/285,006.24 - Step 6: Final answer
x = 215,191.99
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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.