Finding the Fourth Proportional to 201,800.98, 278,475.06 and 111,154.99
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Solution
The fourth proportional to 201,800.98, 278,475.06 and 111,154.99 is: 153,388.22
Step by Step Solution
- Step 1: Write the proportion equation
201,800.98 : 278,475.06 = 111,154.99 : x - Step 2: Convert to fraction form
201,800.98/278,475.06 = 111,154.99/x - Step 3: Cross multiply
201,800.98x = 278,475.06 × 111,154.99 - Step 4: Simplify right side
201,800.98x = 30,953,892,509.55 - Step 5: Solve for x
x = 30,953,892,509.55/201,800.98 - Step 6: Final answer
x = 153,388.22
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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.