Finding the Fourth Proportional to 438,129.90, 657,000.45 and 201,350.70
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Solution
The fourth proportional to 438,129.90, 657,000.45 and 201,350.70 is: 301,936.71
Step by Step Solution
- Step 1: Write the proportion equation
438,129.90 : 657,000.45 = 201,350.70 : x - Step 2: Convert to fraction form
438,129.90/657,000.45 = 201,350.70/x - Step 3: Cross multiply
438,129.90x = 657,000.45 × 201,350.70 - Step 4: Simplify right side
438,129.90x = 132,287,500,507.82 - Step 5: Solve for x
x = 132,287,500,507.82/438,129.90 - Step 6: Final answer
x = 301,936.71
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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.