Finding the Fourth Proportional to 352,371.84, 486,257.60 and 201,478.72
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Solution
The fourth proportional to 352,371.84, 486,257.60 and 201,478.72 is: 278,031.75
Step by Step Solution
- Step 1: Write the proportion equation
352,371.84 : 486,257.60 = 201,478.72 : x - Step 2: Convert to fraction form
352,371.84/486,257.60 = 201,478.72/x - Step 3: Cross multiply
352,371.84x = 486,257.60 × 201,478.72 - Step 4: Simplify right side
352,371.84x = 97,970,558,838.27 - Step 5: Solve for x
x = 97,970,558,838.27/352,371.84 - Step 6: Final answer
x = 278,031.75
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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.