Finding the Fourth Proportional to 438,763.75, 658,145.63 and 106,339.75
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Solution
The fourth proportional to 438,763.75, 658,145.63 and 106,339.75 is: 159,509.63
Step by Step Solution
- Step 1: Write the proportion equation
438,763.75 : 658,145.63 = 106,339.75 : x - Step 2: Convert to fraction form
438,763.75/658,145.63 = 106,339.75/x - Step 3: Cross multiply
438,763.75x = 658,145.63 × 106,339.75 - Step 4: Simplify right side
438,763.75x = 69,987,041,757.79 - Step 5: Solve for x
x = 69,987,041,757.79/438,763.75 - Step 6: Final answer
x = 159,509.63
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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.