Finding the Fourth Proportional to 280,908.27, 387,657.09 and 153,584.01
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Solution
The fourth proportional to 280,908.27, 387,657.09 and 153,584.01 is: 211,947.94
Step by Step Solution
- Step 1: Write the proportion equation
280,908.27 : 387,657.09 = 153,584.01 : x - Step 2: Convert to fraction form
280,908.27/387,657.09 = 153,584.01/x - Step 3: Cross multiply
280,908.27x = 387,657.09 × 153,584.01 - Step 4: Simplify right side
280,908.27x = 59,537,930,387.13 - Step 5: Solve for x
x = 59,537,930,387.13/280,908.27 - Step 6: Final answer
x = 211,947.94
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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.