Finding the Fourth Proportional to 153,905.80, 230,858.70 and 65,129.80
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Solution
The fourth proportional to 153,905.80, 230,858.70 and 65,129.80 is: 97,694.70
Step by Step Solution
- Step 1: Write the proportion equation
153,905.80 : 230,858.70 = 65,129.80 : x - Step 2: Convert to fraction form
153,905.80/230,858.70 = 65,129.80/x - Step 3: Cross multiply
153,905.80x = 230,858.70 × 65,129.80 - Step 4: Simplify right side
153,905.80x = 15,035,780,959.26 - Step 5: Solve for x
x = 15,035,780,959.26/153,905.80 - Step 6: Final answer
x = 97,694.70
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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.