Finding the Fourth Proportional to 260,409.48, 390,613.08 and 110,626.80
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Solution
The fourth proportional to 260,409.48, 390,613.08 and 110,626.80 is: 165,939.72
Step by Step Solution
- Step 1: Write the proportion equation
260,409.48 : 390,613.08 = 110,626.80 : x - Step 2: Convert to fraction form
260,409.48/390,613.08 = 110,626.80/x - Step 3: Cross multiply
260,409.48x = 390,613.08 × 110,626.80 - Step 4: Simplify right side
260,409.48x = 43,212,275,078.54 - Step 5: Solve for x
x = 43,212,275,078.54/260,409.48 - Step 6: Final answer
x = 165,939.72
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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.