Finding the Fourth Proportional to 374,138.10, 561,207.15 and 149,533.20
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Solution
The fourth proportional to 374,138.10, 561,207.15 and 149,533.20 is: 224,299.80
Step by Step Solution
- Step 1: Write the proportion equation
374,138.10 : 561,207.15 = 149,533.20 : x - Step 2: Convert to fraction form
374,138.10/561,207.15 = 149,533.20/x - Step 3: Cross multiply
374,138.10x = 561,207.15 × 149,533.20 - Step 4: Simplify right side
374,138.10x = 83,919,101,002.38 - Step 5: Solve for x
x = 83,919,101,002.38/374,138.10 - Step 6: Final answer
x = 224,299.80
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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.