Finding the Fourth Proportional to 438,537.12, 657,805.73 and 106,113.12
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Solution
The fourth proportional to 438,537.12, 657,805.73 and 106,113.12 is: 159,169.69
Step by Step Solution
- Step 1: Write the proportion equation
438,537.12 : 657,805.73 = 106,113.12 : x - Step 2: Convert to fraction form
438,537.12/657,805.73 = 106,113.12/x - Step 3: Cross multiply
438,537.12x = 657,805.73 × 106,113.12 - Step 4: Simplify right side
438,537.12x = 69,801,817,833.61 - Step 5: Solve for x
x = 69,801,817,833.61/438,537.12 - Step 6: Final answer
x = 159,169.69
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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.