Finding the Fourth Proportional to 251,937.30, 347,647.68 and 155,125.80
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Solution
The fourth proportional to 251,937.30, 347,647.68 and 155,125.80 is: 214,057.72
Step by Step Solution
- Step 1: Write the proportion equation
251,937.30 : 347,647.68 = 155,125.80 : x - Step 2: Convert to fraction form
251,937.30/347,647.68 = 155,125.80/x - Step 3: Cross multiply
251,937.30x = 347,647.68 × 155,125.80 - Step 4: Simplify right side
251,937.30x = 53,929,124,478.14 - Step 5: Solve for x
x = 53,929,124,478.14/251,937.30 - Step 6: Final answer
x = 214,057.72
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1.5x scale
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.