Finding the Fourth Proportional to 354,412.54, 489,101.12 and 193,276.42
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Solution
The fourth proportional to 354,412.54, 489,101.12 and 193,276.42 is: 266,727.90
Step by Step Solution
- Step 1: Write the proportion equation
354,412.54 : 489,101.12 = 193,276.42 : x - Step 2: Convert to fraction form
354,412.54/489,101.12 = 193,276.42/x - Step 3: Cross multiply
354,412.54x = 489,101.12 × 193,276.42 - Step 4: Simplify right side
354,412.54x = 94,531,713,491.59 - Step 5: Solve for x
x = 94,531,713,491.59/354,412.54 - Step 6: Final answer
x = 266,727.90
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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.