Finding the Fourth Proportional to 245,378.14, 338,619.82 and 137,948.64
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Solution
The fourth proportional to 245,378.14, 338,619.82 and 137,948.64 is: 190,367.99
Step by Step Solution
- Step 1: Write the proportion equation
245,378.14 : 338,619.82 = 137,948.64 : x - Step 2: Convert to fraction form
245,378.14/338,619.82 = 137,948.64/x - Step 3: Cross multiply
245,378.14x = 338,619.82 × 137,948.64 - Step 4: Simplify right side
245,378.14x = 46,712,143,646.04 - Step 5: Solve for x
x = 46,712,143,646.04/245,378.14 - Step 6: Final answer
x = 190,367.99
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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.