Finding the Fourth Proportional to 257,226.42, 354,987.21 and 144,048.18
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Solution
The fourth proportional to 257,226.42, 354,987.21 and 144,048.18 is: 198,794.75
Step by Step Solution
- Step 1: Write the proportion equation
257,226.42 : 354,987.21 = 144,048.18 : x - Step 2: Convert to fraction form
257,226.42/354,987.21 = 144,048.18/x - Step 3: Cross multiply
257,226.42x = 354,987.21 × 144,048.18 - Step 4: Simplify right side
257,226.42x = 51,135,261,523.78 - Step 5: Solve for x
x = 51,135,261,523.78/257,226.42 - Step 6: Final answer
x = 198,794.75
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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.