Finding the Fourth Proportional to 354,935.07, 489,853.35 and 202,010.45
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Solution
The fourth proportional to 354,935.07, 489,853.35 and 202,010.45 is: 278,798.86
Step by Step Solution
- Step 1: Write the proportion equation
354,935.07 : 489,853.35 = 202,010.45 : x - Step 2: Convert to fraction form
354,935.07/489,853.35 = 202,010.45/x - Step 3: Cross multiply
354,935.07x = 489,853.35 × 202,010.45 - Step 4: Simplify right side
354,935.07x = 98,955,493,218.24 - Step 5: Solve for x
x = 98,955,493,218.24/354,935.07 - Step 6: Final answer
x = 278,798.86
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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.