Finding the Fourth Proportional to 278,109.84, 416,735.41 and 187,798.62
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Solution
The fourth proportional to 278,109.84, 416,735.41 and 187,798.62 is: 281,408.00
Step by Step Solution
- Step 1: Write the proportion equation
278,109.84 : 416,735.41 = 187,798.62 : x - Step 2: Convert to fraction form
278,109.84/416,735.41 = 187,798.62/x - Step 3: Cross multiply
278,109.84x = 416,735.41 × 187,798.62 - Step 4: Simplify right side
278,109.84x = 78,262,334,903.13 - Step 5: Solve for x
x = 78,262,334,903.13/278,109.84 - Step 6: Final answer
x = 281,408.00
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.