Finding the Fourth Proportional to 313,612.08, 432,742.68 and 186,241.20
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Solution
The fourth proportional to 313,612.08, 432,742.68 and 186,241.20 is: 256,987.92
Step by Step Solution
- Step 1: Write the proportion equation
313,612.08 : 432,742.68 = 186,241.20 : x - Step 2: Convert to fraction form
313,612.08/432,742.68 = 186,241.20/x - Step 3: Cross multiply
313,612.08x = 432,742.68 × 186,241.20 - Step 4: Simplify right side
313,612.08x = 80,594,516,014.42 - Step 5: Solve for x
x = 80,594,516,014.42/313,612.08 - Step 6: Final answer
x = 256,987.92
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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.