Finding the Fourth Proportional to 150,679.13, 207,946.91 and 83,611.13
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Solution
The fourth proportional to 150,679.13, 207,946.91 and 83,611.13 is: 115,388.75
Step by Step Solution
- Step 1: Write the proportion equation
150,679.13 : 207,946.91 = 83,611.13 : x - Step 2: Convert to fraction form
150,679.13/207,946.91 = 83,611.13/x - Step 3: Cross multiply
150,679.13x = 207,946.91 × 83,611.13 - Step 4: Simplify right side
150,679.13x = 17,386,675,294.40 - Step 5: Solve for x
x = 17,386,675,294.40/150,679.13 - Step 6: Final answer
x = 115,388.75
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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.