Finding the Fourth Proportional to 260,108.76, 390,163.14 and 73,120.26
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Solution
The fourth proportional to 260,108.76, 390,163.14 and 73,120.26 is: 109,680.39
Step by Step Solution
- Step 1: Write the proportion equation
260,108.76 : 390,163.14 = 73,120.26 : x - Step 2: Convert to fraction form
260,108.76/390,163.14 = 73,120.26/x - Step 3: Cross multiply
260,108.76x = 390,163.14 × 73,120.26 - Step 4: Simplify right side
260,108.76x = 28,528,830,239.22 - Step 5: Solve for x
x = 28,528,830,239.22/260,108.76 - Step 6: Final answer
x = 109,680.39
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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.