Finding the Fourth Proportional to 256,235.56, 384,587.72 and 129,962.99
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Solution
The fourth proportional to 256,235.56, 384,587.72 and 129,962.99 is: 195,063.36
Step by Step Solution
- Step 1: Write the proportion equation
256,235.56 : 384,587.72 = 129,962.99 : x - Step 2: Convert to fraction form
256,235.56/384,587.72 = 129,962.99/x - Step 3: Cross multiply
256,235.56x = 384,587.72 × 129,962.99 - Step 4: Simplify right side
256,235.56x = 49,982,170,008.48 - Step 5: Solve for x
x = 49,982,170,008.48/256,235.56 - Step 6: Final answer
x = 195,063.36
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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.