Finding the Fourth Proportional to 438,802.56, 658,203.72 and 106,378.56
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Solution
The fourth proportional to 438,802.56, 658,203.72 and 106,378.56 is: 159,567.81
Step by Step Solution
- Step 1: Write the proportion equation
438,802.56 : 658,203.72 = 106,378.56 : x - Step 2: Convert to fraction form
438,802.56/658,203.72 = 106,378.56/x - Step 3: Cross multiply
438,802.56x = 658,203.72 × 106,378.56 - Step 4: Simplify right side
438,802.56x = 70,018,763,920.24 - Step 5: Solve for x
x = 70,018,763,920.24/438,802.56 - Step 6: Final answer
x = 159,567.81
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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.