Finding the Fourth Proportional to 319,207.68, 478,949.76 and 171,290.88
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Solution
The fourth proportional to 319,207.68, 478,949.76 and 171,290.88 is: 257,010.50
Step by Step Solution
- Step 1: Write the proportion equation
319,207.68 : 478,949.76 = 171,290.88 : x - Step 2: Convert to fraction form
319,207.68/478,949.76 = 171,290.88/x - Step 3: Cross multiply
319,207.68x = 478,949.76 × 171,290.88 - Step 4: Simplify right side
319,207.68x = 82,039,725,866.19 - Step 5: Solve for x
x = 82,039,725,866.19/319,207.68 - Step 6: Final answer
x = 257,010.50
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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.