Finding the Fourth Proportional to 1,002.37, 1,503.60 and 308.99
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Solution
The fourth proportional to 1,002.37, 1,503.60 and 308.99 is: 463.49
Step by Step Solution
- Step 1: Write the proportion equation
1,002.37 : 1,503.60 = 308.99 : x - Step 2: Convert to fraction form
1,002.37/1,503.60 = 308.99/x - Step 3: Cross multiply
1,002.37x = 1,503.60 × 308.99 - Step 4: Simplify right side
1,002.37x = 464,588.30 - Step 5: Solve for x
x = 464,588.30/1,002.37 - Step 6: Final answer
x = 463.49
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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.