Finding the Fourth Proportional to 318,204.18, 477,438.44 and 128,798.44
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Solution
The fourth proportional to 318,204.18, 477,438.44 and 128,798.44 is: 193,251.16
Step by Step Solution
- Step 1: Write the proportion equation
318,204.18 : 477,438.44 = 128,798.44 : x - Step 2: Convert to fraction form
318,204.18/477,438.44 = 128,798.44/x - Step 3: Cross multiply
318,204.18x = 477,438.44 × 128,798.44 - Step 4: Simplify right side
318,204.18x = 61,493,326,268.03 - Step 5: Solve for x
x = 61,493,326,268.03/318,204.18 - Step 6: Final answer
x = 193,251.16
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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.