Finding the Fourth Proportional to 319,911.97, 441,478.80 and 176,672.59
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Solution
The fourth proportional to 319,911.97, 441,478.80 and 176,672.59 is: 243,808.33
Step by Step Solution
- Step 1: Write the proportion equation
319,911.97 : 441,478.80 = 176,672.59 : x - Step 2: Convert to fraction form
319,911.97/441,478.80 = 176,672.59/x - Step 3: Cross multiply
319,911.97x = 441,478.80 × 176,672.59 - Step 4: Simplify right side
319,911.97x = 77,997,203,026.09 - Step 5: Solve for x
x = 77,997,203,026.09/319,911.97 - Step 6: Final answer
x = 243,808.33
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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.