Finding the Fourth Proportional to 318,289.60, 477,434.40 and 149,705.12
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Solution
The fourth proportional to 318,289.60, 477,434.40 and 149,705.12 is: 224,557.68
Step by Step Solution
- Step 1: Write the proportion equation
318,289.60 : 477,434.40 = 149,705.12 : x - Step 2: Convert to fraction form
318,289.60/477,434.40 = 149,705.12/x - Step 3: Cross multiply
318,289.60x = 477,434.40 × 149,705.12 - Step 4: Simplify right side
318,289.60x = 71,474,374,144.13 - Step 5: Solve for x
x = 71,474,374,144.13/318,289.60 - Step 6: Final answer
x = 224,557.68
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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.