Finding the Fourth Proportional to 260,489.52, 390,780.75 and 92,107.63
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Solution
The fourth proportional to 260,489.52, 390,780.75 and 92,107.63 is: 138,177.88
Step by Step Solution
- Step 1: Write the proportion equation
260,489.52 : 390,780.75 = 92,107.63 : x - Step 2: Convert to fraction form
260,489.52/390,780.75 = 92,107.63/x - Step 3: Cross multiply
260,489.52x = 390,780.75 × 92,107.63 - Step 4: Simplify right side
260,489.52x = 35,993,889,566.00 - Step 5: Solve for x
x = 35,993,889,566.00/260,489.52 - Step 6: Final answer
x = 138,177.88
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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.