Finding the Fourth Proportional to 345,857.36, 477,463.56 and 245,495.12
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Solution
The fourth proportional to 345,857.36, 477,463.56 and 245,495.12 is: 338,911.32
Step by Step Solution
- Step 1: Write the proportion equation
345,857.36 : 477,463.56 = 245,495.12 : x - Step 2: Convert to fraction form
345,857.36/477,463.56 = 245,495.12/x - Step 3: Cross multiply
345,857.36x = 477,463.56 × 245,495.12 - Step 4: Simplify right side
345,857.36x = 117,214,973,957.83 - Step 5: Solve for x
x = 117,214,973,957.83/345,857.36 - Step 6: Final answer
x = 338,911.32
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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.