Finding the Fourth Proportional to 319,208.68, 478,951.26 and 171,291.88
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Solution
The fourth proportional to 319,208.68, 478,951.26 and 171,291.88 is: 257,012.00
Step by Step Solution
- Step 1: Write the proportion equation
319,208.68 : 478,951.26 = 171,291.88 : x - Step 2: Convert to fraction form
319,208.68/478,951.26 = 171,291.88/x - Step 3: Cross multiply
319,208.68x = 478,951.26 × 171,291.88 - Step 4: Simplify right side
319,208.68x = 82,040,461,753.77 - Step 5: Solve for x
x = 82,040,461,753.77/319,208.68 - Step 6: Final answer
x = 257,012.00
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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.