Finding the Fourth Proportional to 282,432.04, 389,755.75 and 155,107.63
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Solution
The fourth proportional to 282,432.04, 389,755.75 and 155,107.63 is: 214,048.27
Step by Step Solution
- Step 1: Write the proportion equation
282,432.04 : 389,755.75 = 155,107.63 : x - Step 2: Convert to fraction form
282,432.04/389,755.75 = 155,107.63/x - Step 3: Cross multiply
282,432.04x = 389,755.75 × 155,107.63 - Step 4: Simplify right side
282,432.04x = 60,454,090,661.37 - Step 5: Solve for x
x = 60,454,090,661.37/282,432.04 - Step 6: Final answer
x = 214,048.27
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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.