Finding the Fourth Proportional to 251,980.66, 347,708.07 and 155,168.99
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Solution
The fourth proportional to 251,980.66, 347,708.07 and 155,168.99 is: 214,117.66
Step by Step Solution
- Step 1: Write the proportion equation
251,980.66 : 347,708.07 = 155,168.99 : x - Step 2: Convert to fraction form
251,980.66/347,708.07 = 155,168.99/x - Step 3: Cross multiply
251,980.66x = 347,708.07 × 155,168.99 - Step 4: Simplify right side
251,980.66x = 53,953,510,036.75 - Step 5: Solve for x
x = 53,953,510,036.75/251,980.66 - Step 6: Final answer
x = 214,117.66
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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.