Finding the Fourth Proportional to 329,742.49, 455,044.67 and 186,499.49
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Solution
The fourth proportional to 329,742.49, 455,044.67 and 186,499.49 is: 257,369.32
Step by Step Solution
- Step 1: Write the proportion equation
329,742.49 : 455,044.67 = 186,499.49 : x - Step 2: Convert to fraction form
329,742.49/455,044.67 = 186,499.49/x - Step 3: Cross multiply
329,742.49x = 455,044.67 × 186,499.49 - Step 4: Simplify right side
329,742.49x = 84,865,598,882.22 - Step 5: Solve for x
x = 84,865,598,882.22/329,742.49 - Step 6: Final answer
x = 257,369.32
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Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.