Finding the Fourth Proportional to 245,582.74, 338,923.74 and 138,146.32
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Solution
The fourth proportional to 245,582.74, 338,923.74 and 138,146.32 is: 190,652.92
Step by Step Solution
- Step 1: Write the proportion equation
245,582.74 : 338,923.74 = 138,146.32 : x - Step 2: Convert to fraction form
245,582.74/338,923.74 = 138,146.32/x - Step 3: Cross multiply
245,582.74x = 338,923.74 × 138,146.32 - Step 4: Simplify right side
245,582.74x = 46,821,067,441.64 - Step 5: Solve for x
x = 46,821,067,441.64/245,582.74 - Step 6: Final answer
x = 190,652.92
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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.