Finding the Fourth Proportional to 258,161.29, 356,258.10 and 143,440.99
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Solution
The fourth proportional to 258,161.29, 356,258.10 and 143,440.99 is: 197,946.08
Step by Step Solution
- Step 1: Write the proportion equation
258,161.29 : 356,258.10 = 143,440.99 : x - Step 2: Convert to fraction form
258,161.29/356,258.10 = 143,440.99/x - Step 3: Cross multiply
258,161.29x = 356,258.10 × 143,440.99 - Step 4: Simplify right side
258,161.29x = 51,102,014,559.52 - Step 5: Solve for x
x = 51,102,014,559.52/258,161.29 - Step 6: Final answer
x = 197,946.08
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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.