Finding the Fourth Proportional to 319,511.80, 440,926.32 and 176,272.18
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Solution
The fourth proportional to 319,511.80, 440,926.32 and 176,272.18 is: 243,255.63
Step by Step Solution
- Step 1: Write the proportion equation
319,511.80 : 440,926.32 = 176,272.18 : x - Step 2: Convert to fraction form
319,511.80/440,926.32 = 176,272.18/x - Step 3: Cross multiply
319,511.80x = 440,926.32 × 176,272.18 - Step 4: Simplify right side
319,511.80x = 77,723,043,645.78 - Step 5: Solve for x
x = 77,723,043,645.78/319,511.80 - Step 6: Final answer
x = 243,255.63
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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.