Finding the Fourth Proportional to 438,762.18, 658,143.30 and 106,338.18
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Solution
The fourth proportional to 438,762.18, 658,143.30 and 106,338.18 is: 159,507.28
Step by Step Solution
- Step 1: Write the proportion equation
438,762.18 : 658,143.30 = 106,338.18 : x - Step 2: Convert to fraction form
438,762.18/658,143.30 = 106,338.18/x - Step 3: Cross multiply
438,762.18x = 658,143.30 × 106,338.18 - Step 4: Simplify right side
438,762.18x = 69,985,760,701.19 - Step 5: Solve for x
x = 69,985,760,701.19/438,762.18 - Step 6: Final answer
x = 159,507.28
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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.