Finding the Fourth Proportional to 316,843.26, 437,632.14 and 256,482.06
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Solution
The fourth proportional to 316,843.26, 437,632.14 and 256,482.06 is: 354,259.68
Step by Step Solution
- Step 1: Write the proportion equation
316,843.26 : 437,632.14 = 256,482.06 : x - Step 2: Convert to fraction form
316,843.26/437,632.14 = 256,482.06/x - Step 3: Cross multiply
316,843.26x = 437,632.14 × 256,482.06 - Step 4: Simplify right side
316,843.26x = 112,244,792,789.41 - Step 5: Solve for x
x = 112,244,792,789.41/316,843.26 - Step 6: Final answer
x = 354,259.68
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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.