Finding the Fourth Proportional to 286,344.90, 395,145.14 and 159,028.70
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Solution
The fourth proportional to 286,344.90, 395,145.14 and 159,028.70 is: 219,453.59
Step by Step Solution
- Step 1: Write the proportion equation
286,344.90 : 395,145.14 = 159,028.70 : x - Step 2: Convert to fraction form
286,344.90/395,145.14 = 159,028.70/x - Step 3: Cross multiply
286,344.90x = 395,145.14 × 159,028.70 - Step 4: Simplify right side
286,344.90x = 62,839,415,154.65 - Step 5: Solve for x
x = 62,839,415,154.65/286,344.90 - Step 6: Final answer
x = 219,453.59
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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.