Finding the Fourth Proportional to 258,637.50, 356,919.75 and 145,462.68
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Solution
The fourth proportional to 258,637.50, 356,919.75 and 145,462.68 is: 200,738.50
Step by Step Solution
- Step 1: Write the proportion equation
258,637.50 : 356,919.75 = 145,462.68 : x - Step 2: Convert to fraction form
258,637.50/356,919.75 = 145,462.68/x - Step 3: Cross multiply
258,637.50x = 356,919.75 × 145,462.68 - Step 4: Simplify right side
258,637.50x = 51,918,503,379.93 - Step 5: Solve for x
x = 51,918,503,379.93/258,637.50 - Step 6: Final answer
x = 200,738.50
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1.5x scale
Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.