Finding the Fourth Proportional to 329,869.22, 455,221.49 and 186,659.19
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Solution
The fourth proportional to 329,869.22, 455,221.49 and 186,659.19 is: 257,590.79
Step by Step Solution
- Step 1: Write the proportion equation
329,869.22 : 455,221.49 = 186,659.19 : x - Step 2: Convert to fraction form
329,869.22/455,221.49 = 186,659.19/x - Step 3: Cross multiply
329,869.22x = 455,221.49 × 186,659.19 - Step 4: Simplify right side
329,869.22x = 84,971,274,593.99 - Step 5: Solve for x
x = 84,971,274,593.99/329,869.22 - Step 6: Final answer
x = 257,590.79
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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.