Finding the Fourth Proportional to 438,313.30, 657,535.68 and 153,953.73
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Solution
The fourth proportional to 438,313.30, 657,535.68 and 153,953.73 is: 230,953.68
Step by Step Solution
- Step 1: Write the proportion equation
438,313.30 : 657,535.68 = 153,953.73 : x - Step 2: Convert to fraction form
438,313.30/657,535.68 = 153,953.73/x - Step 3: Cross multiply
438,313.30x = 657,535.68 × 153,953.73 - Step 4: Simplify right side
438,313.30x = 101,230,070,544.09 - Step 5: Solve for x
x = 101,230,070,544.09/438,313.30 - Step 6: Final answer
x = 230,953.68
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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.