Finding the Fourth Proportional to 201,420.80, 277,954.80 and 110,776.68
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Solution
The fourth proportional to 201,420.80, 277,954.80 and 110,776.68 is: 152,868.57
Step by Step Solution
- Step 1: Write the proportion equation
201,420.80 : 277,954.80 = 110,776.68 : x - Step 2: Convert to fraction form
201,420.80/277,954.80 = 110,776.68/x - Step 3: Cross multiply
201,420.80x = 277,954.80 × 110,776.68 - Step 4: Simplify right side
201,420.80x = 30,790,909,934.06 - Step 5: Solve for x
x = 30,790,909,934.06/201,420.80 - Step 6: Final answer
x = 152,868.57
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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.