Finding the Fourth Proportional to 258,750.76, 388,126.12 and 71,762.26
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Solution
The fourth proportional to 258,750.76, 388,126.12 and 71,762.26 is: 107,643.38
Step by Step Solution
- Step 1: Write the proportion equation
258,750.76 : 388,126.12 = 71,762.26 : x - Step 2: Convert to fraction form
258,750.76/388,126.12 = 71,762.26/x - Step 3: Cross multiply
258,750.76x = 388,126.12 × 71,762.26 - Step 4: Simplify right side
258,750.76x = 27,852,807,536.23 - Step 5: Solve for x
x = 27,852,807,536.23/258,750.76 - Step 6: Final answer
x = 107,643.38
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1.5x scale
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.