Finding the Fourth Proportional to 258,109.30, 356,179.26 and 143,395.99
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Solution
The fourth proportional to 258,109.30, 356,179.26 and 143,395.99 is: 197,880.04
Step by Step Solution
- Step 1: Write the proportion equation
258,109.30 : 356,179.26 = 143,395.99 : x - Step 2: Convert to fraction form
258,109.30/356,179.26 = 143,395.99/x - Step 3: Cross multiply
258,109.30x = 356,179.26 × 143,395.99 - Step 4: Simplify right side
258,109.30x = 51,074,677,605.17 - Step 5: Solve for x
x = 51,074,677,605.17/258,109.30 - Step 6: Final answer
x = 197,880.04
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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.