Finding the Fourth Proportional to 330,637.20, 456,288.76 and 201,583.14
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Solution
The fourth proportional to 330,637.20, 456,288.76 and 201,583.14 is: 278,190.48
Step by Step Solution
- Step 1: Write the proportion equation
330,637.20 : 456,288.76 = 201,583.14 : x - Step 2: Convert to fraction form
330,637.20/456,288.76 = 201,583.14/x - Step 3: Cross multiply
330,637.20x = 456,288.76 × 201,583.14 - Step 4: Simplify right side
330,637.20x = 91,980,120,987.51 - Step 5: Solve for x
x = 91,980,120,987.51/330,637.20 - Step 6: Final answer
x = 278,190.48
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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.