Finding the Fourth Proportional to 328,772.16, 453,679.74 and 201,430.44
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Solution
The fourth proportional to 328,772.16, 453,679.74 and 201,430.44 is: 277,958.18
Step by Step Solution
- Step 1: Write the proportion equation
328,772.16 : 453,679.74 = 201,430.44 : x - Step 2: Convert to fraction form
328,772.16/453,679.74 = 201,430.44/x - Step 3: Cross multiply
328,772.16x = 453,679.74 × 201,430.44 - Step 4: Simplify right side
328,772.16x = 91,384,909,647.29 - Step 5: Solve for x
x = 91,384,909,647.29/328,772.16 - Step 6: Final answer
x = 277,958.18
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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.