Finding the Fourth Proportional to 153,753.57, 230,638.55 and 145,339.09
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Solution
The fourth proportional to 153,753.57, 230,638.55 and 145,339.09 is: 218,016.38
Step by Step Solution
- Step 1: Write the proportion equation
153,753.57 : 230,638.55 = 145,339.09 : x - Step 2: Convert to fraction form
153,753.57/230,638.55 = 145,339.09/x - Step 3: Cross multiply
153,753.57x = 230,638.55 × 145,339.09 - Step 4: Simplify right side
153,753.57x = 33,520,796,975.92 - Step 5: Solve for x
x = 33,520,796,975.92/153,753.57 - Step 6: Final answer
x = 218,016.38
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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.