Finding the Fourth Proportional to 319,564.80, 478,982.90 and 199,677.08
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Solution
The fourth proportional to 319,564.80, 478,982.90 and 199,677.08 is: 299,287.99
Step by Step Solution
- Step 1: Write the proportion equation
319,564.80 : 478,982.90 = 199,677.08 : x - Step 2: Convert to fraction form
319,564.80/478,982.90 = 199,677.08/x - Step 3: Cross multiply
319,564.80x = 478,982.90 × 199,677.08 - Step 4: Simplify right side
319,564.80x = 95,641,906,841.93 - Step 5: Solve for x
x = 95,641,906,841.93/319,564.80 - Step 6: Final answer
x = 299,287.99
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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.