Finding the Fourth Proportional to 438,499.90, 657,555.45 and 201,720.70
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Solution
The fourth proportional to 438,499.90, 657,555.45 and 201,720.70 is: 302,491.62
Step by Step Solution
- Step 1: Write the proportion equation
438,499.90 : 657,555.45 = 201,720.70 : x - Step 2: Convert to fraction form
438,499.90/657,555.45 = 201,720.70/x - Step 3: Cross multiply
438,499.90x = 657,555.45 × 201,720.70 - Step 4: Simplify right side
438,499.90x = 132,642,545,662.82 - Step 5: Solve for x
x = 132,642,545,662.82/438,499.90 - Step 6: Final answer
x = 302,491.62
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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.