Finding the Fourth Proportional to 276,023.80, 414,035.70 and 86,485.75
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Solution
The fourth proportional to 276,023.80, 414,035.70 and 86,485.75 is: 129,728.63
Step by Step Solution
- Step 1: Write the proportion equation
276,023.80 : 414,035.70 = 86,485.75 : x - Step 2: Convert to fraction form
276,023.80/414,035.70 = 86,485.75/x - Step 3: Cross multiply
276,023.80x = 414,035.70 × 86,485.75 - Step 4: Simplify right side
276,023.80x = 35,808,188,041.28 - Step 5: Solve for x
x = 35,808,188,041.28/276,023.80 - Step 6: Final answer
x = 129,728.63
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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.