Finding the Fourth Proportional to 256,396.48, 353,740.50 and 148,878.09
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Solution
The fourth proportional to 256,396.48, 353,740.50 and 148,878.09 is: 205,401.46
Step by Step Solution
- Step 1: Write the proportion equation
256,396.48 : 353,740.50 = 148,878.09 : x - Step 2: Convert to fraction form
256,396.48/353,740.50 = 148,878.09/x - Step 3: Cross multiply
256,396.48x = 353,740.50 × 148,878.09 - Step 4: Simplify right side
256,396.48x = 52,664,209,995.65 - Step 5: Solve for x
x = 52,664,209,995.65/256,396.48 - Step 6: Final answer
x = 205,401.46
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Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.