Finding the Fourth Proportional to 438,762.07, 658,143.11 and 106,338.07
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Solution
The fourth proportional to 438,762.07, 658,143.11 and 106,338.07 is: 159,507.11
Step by Step Solution
- Step 1: Write the proportion equation
438,762.07 : 658,143.11 = 106,338.07 : x - Step 2: Convert to fraction form
438,762.07/658,143.11 = 106,338.07/x - Step 3: Cross multiply
438,762.07x = 658,143.11 × 106,338.07 - Step 4: Simplify right side
438,762.07x = 69,985,668,101.20 - Step 5: Solve for x
x = 69,985,668,101.20/438,762.07 - Step 6: Final answer
x = 159,507.11
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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.