Finding the Fourth Proportional to 260,163.60, 390,312.54 and 80,244.96
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Solution
The fourth proportional to 260,163.60, 390,312.54 and 80,244.96 is: 120,388.14
Step by Step Solution
- Step 1: Write the proportion equation
260,163.60 : 390,312.54 = 80,244.96 : x - Step 2: Convert to fraction form
260,163.60/390,312.54 = 80,244.96/x - Step 3: Cross multiply
260,163.60x = 390,312.54 × 80,244.96 - Step 4: Simplify right side
260,163.60x = 31,320,612,696.13 - Step 5: Solve for x
x = 31,320,612,696.13/260,163.60 - Step 6: Final answer
x = 120,388.14
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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.