Finding the Fourth Proportional to 259,583.21, 358,245.03 and 143,319.47
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Solution
The fourth proportional to 259,583.21, 358,245.03 and 143,319.47 is: 197,792.02
Step by Step Solution
- Step 1: Write the proportion equation
259,583.21 : 358,245.03 = 143,319.47 : x - Step 2: Convert to fraction form
259,583.21/358,245.03 = 143,319.47/x - Step 3: Cross multiply
259,583.21x = 358,245.03 × 143,319.47 - Step 4: Simplify right side
259,583.21x = 51,343,486,575.96 - Step 5: Solve for x
x = 51,343,486,575.96/259,583.21 - Step 6: Final answer
x = 197,792.02
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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.