Finding the Fourth Proportional to 260,137.12, 389,937.84 and 102,301.60
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Solution
The fourth proportional to 260,137.12, 389,937.84 and 102,301.60 is: 153,347.07
Step by Step Solution
- Step 1: Write the proportion equation
260,137.12 : 389,937.84 = 102,301.60 : x - Step 2: Convert to fraction form
260,137.12/389,937.84 = 102,301.60/x - Step 3: Cross multiply
260,137.12x = 389,937.84 × 102,301.60 - Step 4: Simplify right side
260,137.12x = 39,891,264,932.54 - Step 5: Solve for x
x = 39,891,264,932.54/260,137.12 - Step 6: Final answer
x = 153,347.07
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.