Finding the Fourth Proportional to 245,280.14, 338,427.47 and 143,247.68
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Solution
The fourth proportional to 245,280.14, 338,427.47 and 143,247.68 is: 197,647.27
Step by Step Solution
- Step 1: Write the proportion equation
245,280.14 : 338,427.47 = 143,247.68 : x - Step 2: Convert to fraction form
245,280.14/338,427.47 = 143,247.68/x - Step 3: Cross multiply
245,280.14x = 338,427.47 × 143,247.68 - Step 4: Simplify right side
245,280.14x = 48,478,948,591.75 - Step 5: Solve for x
x = 48,478,948,591.75/245,280.14 - Step 6: Final answer
x = 197,647.27
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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.