Finding the Fourth Proportional to 275,389.74, 379,823.58 and 199,194.66
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Solution
The fourth proportional to 275,389.74, 379,823.58 and 199,194.66 is: 274,733.65
Step by Step Solution
- Step 1: Write the proportion equation
275,389.74 : 379,823.58 = 199,194.66 : x - Step 2: Convert to fraction form
275,389.74/379,823.58 = 199,194.66/x - Step 3: Cross multiply
275,389.74x = 379,823.58 × 199,194.66 - Step 4: Simplify right side
275,389.74x = 75,658,828,878.08 - Step 5: Solve for x
x = 75,658,828,878.08/275,389.74 - Step 6: Final answer
x = 274,733.65
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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.