Finding the Fourth Proportional to 354,561.10, 489,301.26 and 193,422.13
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Solution
The fourth proportional to 354,561.10, 489,301.26 and 193,422.13 is: 266,926.32
Step by Step Solution
- Step 1: Write the proportion equation
354,561.10 : 489,301.26 = 193,422.13 : x - Step 2: Convert to fraction form
354,561.10/489,301.26 = 193,422.13/x - Step 3: Cross multiply
354,561.10x = 489,301.26 × 193,422.13 - Step 4: Simplify right side
354,561.10x = 94,641,689,972.30 - Step 5: Solve for x
x = 94,641,689,972.30/354,561.10 - Step 6: Final answer
x = 266,926.32
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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.