Finding the Fourth Proportional to 291,219.06, 436,828.11 and 91,556.88
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Solution
The fourth proportional to 291,219.06, 436,828.11 and 91,556.88 is: 137,335.17
Step by Step Solution
- Step 1: Write the proportion equation
291,219.06 : 436,828.11 = 91,556.88 : x - Step 2: Convert to fraction form
291,219.06/436,828.11 = 91,556.88/x - Step 3: Cross multiply
291,219.06x = 436,828.11 × 91,556.88 - Step 4: Simplify right side
291,219.06x = 39,994,618,847.90 - Step 5: Solve for x
x = 39,994,618,847.90/291,219.06 - Step 6: Final answer
x = 137,335.17
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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.