Finding the Fourth Proportional to 261,929.97, 361,464.80 and 153,040.70
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Solution
The fourth proportional to 261,929.97, 361,464.80 and 153,040.70 is: 211,197.01
Step by Step Solution
- Step 1: Write the proportion equation
261,929.97 : 361,464.80 = 153,040.70 : x - Step 2: Convert to fraction form
261,929.97/361,464.80 = 153,040.70/x - Step 3: Cross multiply
261,929.97x = 361,464.80 × 153,040.70 - Step 4: Simplify right side
261,929.97x = 55,318,824,699.55 - Step 5: Solve for x
x = 55,318,824,699.55/261,929.97 - Step 6: Final answer
x = 211,197.01
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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.