Finding the Fourth Proportional to 245,542.14, 338,844.69 and 138,112.14
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Solution
The fourth proportional to 245,542.14, 338,844.69 and 138,112.14 is: 190,592.81
Step by Step Solution
- Step 1: Write the proportion equation
245,542.14 : 338,844.69 = 138,112.14 : x - Step 2: Convert to fraction form
245,542.14/338,844.69 = 138,112.14/x - Step 3: Cross multiply
245,542.14x = 338,844.69 × 138,112.14 - Step 4: Simplify right side
245,542.14x = 46,798,565,263.54 - Step 5: Solve for x
x = 46,798,565,263.54/245,542.14 - Step 6: Final answer
x = 190,592.81
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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.