Finding the Fourth Proportional to 209,349.51, 314,128.16 and 82,987.08
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Solution
The fourth proportional to 209,349.51, 314,128.16 and 82,987.08 is: 124,521.80
Step by Step Solution
- Step 1: Write the proportion equation
209,349.51 : 314,128.16 = 82,987.08 : x - Step 2: Convert to fraction form
209,349.51/314,128.16 = 82,987.08/x - Step 3: Cross multiply
209,349.51x = 314,128.16 × 82,987.08 - Step 4: Simplify right side
209,349.51x = 26,068,578,329.24 - Step 5: Solve for x
x = 26,068,578,329.24/209,349.51 - Step 6: Final answer
x = 124,521.80
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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.