Finding the Fourth Proportional to 319,316.69, 478,893.35 and 94,624.68
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Solution
The fourth proportional to 319,316.69, 478,893.35 and 94,624.68 is: 141,912.81
Step by Step Solution
- Step 1: Write the proportion equation
319,316.69 : 478,893.35 = 94,624.68 : x - Step 2: Convert to fraction form
319,316.69/478,893.35 = 94,624.68/x - Step 3: Cross multiply
319,316.69x = 478,893.35 × 94,624.68 - Step 4: Simplify right side
319,316.69x = 45,315,128,431.72 - Step 5: Solve for x
x = 45,315,128,431.72/319,316.69 - Step 6: Final answer
x = 141,912.81
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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.