Finding the Fourth Proportional to 270,946.36, 406,438.17 and 81,398.80
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Solution
The fourth proportional to 270,946.36, 406,438.17 and 81,398.80 is: 122,103.80
Step by Step Solution
- Step 1: Write the proportion equation
270,946.36 : 406,438.17 = 81,398.80 : x - Step 2: Convert to fraction form
270,946.36/406,438.17 = 81,398.80/x - Step 3: Cross multiply
270,946.36x = 406,438.17 × 81,398.80 - Step 4: Simplify right side
270,946.36x = 33,083,579,312.20 - Step 5: Solve for x
x = 33,083,579,312.20/270,946.36 - Step 6: Final answer
x = 122,103.80
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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.