Finding the Fourth Proportional to 260,231.70, 390,347.68 and 73,243.20
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Solution
The fourth proportional to 260,231.70, 390,347.68 and 73,243.20 is: 109,864.84
Step by Step Solution
- Step 1: Write the proportion equation
260,231.70 : 390,347.68 = 73,243.20 : x - Step 2: Convert to fraction form
260,231.70/390,347.68 = 73,243.20/x - Step 3: Cross multiply
260,231.70x = 390,347.68 × 73,243.20 - Step 4: Simplify right side
260,231.70x = 28,590,313,195.78 - Step 5: Solve for x
x = 28,590,313,195.78/260,231.70 - Step 6: Final answer
x = 109,864.84
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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.