Finding the Fourth Proportional to 320,914.68, 442,865.74 and 177,677.08
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Solution
The fourth proportional to 320,914.68, 442,865.74 and 177,677.08 is: 245,196.30
Step by Step Solution
- Step 1: Write the proportion equation
320,914.68 : 442,865.74 = 177,677.08 : x - Step 2: Convert to fraction form
320,914.68/442,865.74 = 177,677.08/x - Step 3: Cross multiply
320,914.68x = 442,865.74 × 177,677.08 - Step 4: Simplify right side
320,914.68x = 78,687,091,515.24 - Step 5: Solve for x
x = 78,687,091,515.24/320,914.68 - Step 6: Final answer
x = 245,196.30
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Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.