Finding the Fourth Proportional to 390,163.08, 585,244.62 and 109,680.33
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Solution
The fourth proportional to 390,163.08, 585,244.62 and 109,680.33 is: 164,520.50
Step by Step Solution
- Step 1: Write the proportion equation
390,163.08 : 585,244.62 = 109,680.33 : x - Step 2: Convert to fraction form
390,163.08/585,244.62 = 109,680.33/x - Step 3: Cross multiply
390,163.08x = 585,244.62 × 109,680.33 - Step 4: Simplify right side
390,163.08x = 64,189,823,052.32 - Step 5: Solve for x
x = 64,189,823,052.32/390,163.08 - Step 6: Final answer
x = 164,520.50
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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.