Finding the Fourth Proportional to 354,678.98, 489,468.79 and 193,542.87
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Solution
The fourth proportional to 354,678.98, 489,468.79 and 193,542.87 is: 267,095.59
Step by Step Solution
- Step 1: Write the proportion equation
354,678.98 : 489,468.79 = 193,542.87 : x - Step 2: Convert to fraction form
354,678.98/489,468.79 = 193,542.87/x - Step 3: Cross multiply
354,678.98x = 489,468.79 × 193,542.87 - Step 4: Simplify right side
354,678.98x = 94,733,191,460.83 - Step 5: Solve for x
x = 94,733,191,460.83/354,678.98 - Step 6: Final answer
x = 267,095.59
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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.