Finding the Fourth Proportional to 390,070.11, 585,194.97 and 165,439.29
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Solution
The fourth proportional to 390,070.11, 585,194.97 and 165,439.29 is: 248,197.02
Step by Step Solution
- Step 1: Write the proportion equation
390,070.11 : 585,194.97 = 165,439.29 : x - Step 2: Convert to fraction form
390,070.11/585,194.97 = 165,439.29/x - Step 3: Cross multiply
390,070.11x = 585,194.97 × 165,439.29 - Step 4: Simplify right side
390,070.11x = 96,814,240,348.37 - Step 5: Solve for x
x = 96,814,240,348.37/390,070.11 - Step 6: Final answer
x = 248,197.02
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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.