Finding the Fourth Proportional to 356,991.89, 492,564.30 and 201,946.74
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Solution
The fourth proportional to 356,991.89, 492,564.30 and 201,946.74 is: 278,638.70
Step by Step Solution
- Step 1: Write the proportion equation
356,991.89 : 492,564.30 = 201,946.74 : x - Step 2: Convert to fraction form
356,991.89/492,564.30 = 201,946.74/x - Step 3: Cross multiply
356,991.89x = 492,564.30 × 201,946.74 - Step 4: Simplify right side
356,991.89x = 99,471,754,625.38 - Step 5: Solve for x
x = 99,471,754,625.38/356,991.89 - Step 6: Final answer
x = 278,638.70
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1.5x scale
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.