Finding the Fourth Proportional to 354,587.58, 489,343.19 and 193,451.49
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Solution
The fourth proportional to 354,587.58, 489,343.19 and 193,451.49 is: 266,969.78
Step by Step Solution
- Step 1: Write the proportion equation
354,587.58 : 489,343.19 = 193,451.49 : x - Step 2: Convert to fraction form
354,587.58/489,343.19 = 193,451.49/x - Step 3: Cross multiply
354,587.58x = 489,343.19 × 193,451.49 - Step 4: Simplify right side
354,587.58x = 94,664,169,226.85 - Step 5: Solve for x
x = 94,664,169,226.85/354,587.58 - Step 6: Final answer
x = 266,969.78
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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.