Finding the Fourth Proportional to 268,203.36, 401,969.64 and 135,117.12
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Solution
The fourth proportional to 268,203.36, 401,969.64 and 135,117.12 is: 202,506.71
Step by Step Solution
- Step 1: Write the proportion equation
268,203.36 : 401,969.64 = 135,117.12 : x - Step 2: Convert to fraction form
268,203.36/401,969.64 = 135,117.12/x - Step 3: Cross multiply
268,203.36x = 401,969.64 × 135,117.12 - Step 4: Simplify right side
268,203.36x = 54,312,980,084.24 - Step 5: Solve for x
x = 54,312,980,084.24/268,203.36 - Step 6: Final answer
x = 202,506.71
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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.