Finding the Fourth Proportional to 354,539.80, 489,902.07 and 269,509.24
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Solution
The fourth proportional to 354,539.80, 489,902.07 and 269,509.24 is: 372,407.09
Step by Step Solution
- Step 1: Write the proportion equation
354,539.80 : 489,902.07 = 269,509.24 : x - Step 2: Convert to fraction form
354,539.80/489,902.07 = 269,509.24/x - Step 3: Cross multiply
354,539.80x = 489,902.07 × 269,509.24 - Step 4: Simplify right side
354,539.80x = 132,033,134,560.13 - Step 5: Solve for x
x = 132,033,134,560.13/354,539.80 - Step 6: Final answer
x = 372,407.09
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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.