Finding the Fourth Proportional to 438,430.73, 657,650.64 and 154,129.23
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Solution
The fourth proportional to 438,430.73, 657,650.64 and 154,129.23 is: 231,195.45
Step by Step Solution
- Step 1: Write the proportion equation
438,430.73 : 657,650.64 = 154,129.23 : x - Step 2: Convert to fraction form
438,430.73/657,650.64 = 154,129.23/x - Step 3: Cross multiply
438,430.73x = 657,650.64 × 154,129.23 - Step 4: Simplify right side
438,430.73x = 101,363,187,330.19 - Step 5: Solve for x
x = 101,363,187,330.19/438,430.73 - Step 6: Final answer
x = 231,195.45
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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.