Finding the Fourth Proportional to 458,195.20, 687,292.80 and 125,771.20
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Solution
The fourth proportional to 458,195.20, 687,292.80 and 125,771.20 is: 188,656.80
Step by Step Solution
- Step 1: Write the proportion equation
458,195.20 : 687,292.80 = 125,771.20 : x - Step 2: Convert to fraction form
458,195.20/687,292.80 = 125,771.20/x - Step 3: Cross multiply
458,195.20x = 687,292.80 × 125,771.20 - Step 4: Simplify right side
458,195.20x = 86,441,640,207.36 - Step 5: Solve for x
x = 86,441,640,207.36/458,195.20 - Step 6: Final answer
x = 188,656.80
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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.