Finding the Fourth Proportional to 245,355.36, 338,582.56 and 137,929.92
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Solution
The fourth proportional to 245,355.36, 338,582.56 and 137,929.92 is: 190,338.88
Step by Step Solution
- Step 1: Write the proportion equation
245,355.36 : 338,582.56 = 137,929.92 : x - Step 2: Convert to fraction form
245,355.36/338,582.56 = 137,929.92/x - Step 3: Cross multiply
245,355.36x = 338,582.56 × 137,929.92 - Step 4: Simplify right side
245,355.36x = 46,700,665,414.20 - Step 5: Solve for x
x = 46,700,665,414.20/245,355.36 - Step 6: Final answer
x = 190,338.88
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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.