Finding the Fourth Proportional to 623,129.85, 934,694.78 and 149,815.21
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Solution
The fourth proportional to 623,129.85, 934,694.78 and 149,815.21 is: 224,722.82
Step by Step Solution
- Step 1: Write the proportion equation
623,129.85 : 934,694.78 = 149,815.21 : x - Step 2: Convert to fraction form
623,129.85/934,694.78 = 149,815.21/x - Step 3: Cross multiply
623,129.85x = 934,694.78 × 149,815.21 - Step 4: Simplify right side
623,129.85x = 140,031,494,751.60 - Step 5: Solve for x
x = 140,031,494,751.60/623,129.85 - Step 6: Final answer
x = 224,722.82
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Similar ratio
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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.