Finding the Fourth Proportional to 268,883.40, 403,574.48 and 135,857.07
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Solution
The fourth proportional to 268,883.40, 403,574.48 and 135,857.07 is: 203,911.61
Step by Step Solution
- Step 1: Write the proportion equation
268,883.40 : 403,574.48 = 135,857.07 : x - Step 2: Convert to fraction form
268,883.40/403,574.48 = 135,857.07/x - Step 3: Cross multiply
268,883.40x = 403,574.48 × 135,857.07 - Step 4: Simplify right side
268,883.40x = 54,828,445,700.29 - Step 5: Solve for x
x = 54,828,445,700.29/268,883.40 - Step 6: Final answer
x = 203,911.61
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1.5x scale
Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.