Finding the Fourth Proportional to 319,619.04, 478,681.68 and 252,609.60
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Solution
The fourth proportional to 319,619.04, 478,681.68 and 252,609.60 is: 378,324.11
Step by Step Solution
- Step 1: Write the proportion equation
319,619.04 : 478,681.68 = 252,609.60 : x - Step 2: Convert to fraction form
319,619.04/478,681.68 = 252,609.60/x - Step 3: Cross multiply
319,619.04x = 478,681.68 × 252,609.60 - Step 4: Simplify right side
319,619.04x = 120,919,587,712.13 - Step 5: Solve for x
x = 120,919,587,712.13/319,619.04 - Step 6: Final answer
x = 378,324.11
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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.