Finding the Fourth Proportional to 438,691.24, 657,938.34 and 201,806.20
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Solution
The fourth proportional to 438,691.24, 657,938.34 and 201,806.20 is: 302,663.98
Step by Step Solution
- Step 1: Write the proportion equation
438,691.24 : 657,938.34 = 201,806.20 : x - Step 2: Convert to fraction form
438,691.24/657,938.34 = 201,806.20/x - Step 3: Cross multiply
438,691.24x = 657,938.34 × 201,806.20 - Step 4: Simplify right side
438,691.24x = 132,776,036,229.71 - Step 5: Solve for x
x = 132,776,036,229.71/438,691.24 - Step 6: Final answer
x = 302,663.98
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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.