Finding the Fourth Proportional to 257,590.44, 355,469.49 and 142,850.58
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Solution
The fourth proportional to 257,590.44, 355,469.49 and 142,850.58 is: 197,130.85
Step by Step Solution
- Step 1: Write the proportion equation
257,590.44 : 355,469.49 = 142,850.58 : x - Step 2: Convert to fraction form
257,590.44/355,469.49 = 142,850.58/x - Step 3: Cross multiply
257,590.44x = 355,469.49 × 142,850.58 - Step 4: Simplify right side
257,590.44x = 50,779,022,818.80 - Step 5: Solve for x
x = 50,779,022,818.80/257,590.44 - Step 6: Final answer
x = 197,130.85
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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.